Ange Postecoglou hit out at Tottenham's critics, saying they are trying to diminish the team's achievements because they fear Spurs will win the Europa League.
Spurs beat Bodo/Glimt 5-1 on aggregate to set up an all-English final with Manchester United in Bilbao on May 21.
For both sides the final offers the chance to celebrate at the end of difficult seasons. Spurs and United are languishing in the bottom half of the Premier League but would qualify for the Champions League with a Europa League triumph.
United boss Ruben Amorim said that would still not make his side's season a success but Postecoglou tore into his detractors when that quote was put to him and said it would be "massive" for Spurs to lift the trophy and end their 17-year wait for silverware.
"Why do I care what Manchester United think? Ask the Manchester United manager why he says that. I've said all along this is important," said Postecoglou.
"What's happening right now is people are fearing that. That it actually might happen. And let's see if we can tear it down and diminish it somehow by saying it's been a poor season and we don't deserve this or that and comparing us to Manchester United.
"Maybe if we'd had Manchester United's success I'd have a different view.
"But I came into this role...I could have been sitting here in fifth position and I guarantee the commentary would have been: 'That's great Ange but this club needs to win something.'
"Of course it's massive. You have to frame it against what this club has been through over the last 15-20 years, what the supporters have been through. Manchester United have got their own journey. Maybe if they go 15 years without winning something they'll change their own perspective as well."
When asked about a Europa League win also earning Spurs a place in the Champions League, Postecoglou said: "That's going to upset a lot of people, isn't it?
"There will be debates now raging. I've heard the latest one is that neither of us will be able to get a trophy if we win, just take a team photo because we're not worthy.
"Who cares if we're struggling in the league? Why is that important when...as if it's so easy to get to a final - then why doesn't everyone that finishes in the top three do it? It's a separate thing. It's got nothing to do with league form.
"We understand our league form hasn't been great. We understand the struggles we've had. A lot of them are because of the situation we've been in. But how that diminishes the achievement of getting to a final...
"This club and others have finished first, second or third in the Premier League and haven't made finals. I couldn't care less. I think both us and Manchester United have earned the right to be there. I think we've beaten teams who probably will be in the Champions League next year on our road to getting there.
"I'm looking forward to it, it should be a great game."
Spurs had just 31 per cent possession on Thursday night as they played a more conservative game to limit a Bodo/Glimt side which has an outstanding record on their home artificial pitch. The tactic paid off, with Spurs winning 2-0 on the night.
Asked if he was pleased with the way his team adapted their game, Postecoglou said: "I love winning. That's all I've done my whole career. People are dismissive of it, that's fine.
"I love winning and I love the way the boys clearly understood what we needed to do tonight."
Ange gives passionate dressing room speech after reaching EL final
After the win in Norway, Tottenham released dressing room footage of Postecoglou giving a passionate speech.
The Australian said: "What you've gone through this year, let me tell you, I've been in this game a long time and I've experienced it all, but I'm so proud of how all of you have just stuck together.
"Not one time have I felt like people are not believing or have lost what we have in here - it's just outstanding. People will never realise what it's taken for you guys to be in this position, and you deserve all of the credit for that, that's unbelievable what you've done.
"To come to this difficult place, win comfortably, but the whole time through all the things we've had to deal with.
"There's people who aren't with us today who are back home - Fraser's (Forster) played a big part, Sonny's (Heung-Min Son) played a big part, there's Madders (James Maddison), Lucas (Bergvall), Radu (Dragusin), they've all played a big part. Everyone's contributed and that's the main thing that's got us to this point.
"Yeah, we've had problems for sure, but we've stuck together and you deserve it.
"Now we've got just under two weeks to prepare. Every day's important, every training session, every game we have between now and then is about getting ready for that big game.
"Well you can change things. You saw what you did - 400 supporters here today, they'll never forget it, and there's thousands back home and you can make it something really special.
"I keep saying to you, this is the group of players that are going to do it. So we focus on that for now but you deserve all of the credit. You've been outstanding."
Tottenham will face Man Utd in the Europa League final.
It takes place at the San Mames Stadium in Bilbao, Spain on Wednesday May 21; kick-off 8pm.
