Harry Kane's stoppage-time finish, his 55th goal of the season across all competitions, briefly threatened to ignite a final few minutes of pressure, but PSG saw out the closing stages without alarm to reach the final in Budapest on 30 May.
The Austrian right-back was one of Bayern Munich's more consistent performers across both legs and spoke with characteristic directness about a defeat that stings, even for a squad that has won the Bundesliga and still has the DFB-Pokal final against Stuttgart ahead of them in Berlin.
"It's tough. It always is when you go out in a game like this. I think over two legs, at this level, it really comes down to very small details, to a few decisions, to a few moments. I somehow always had the feeling that we could turn it around. In the end, we didn't win today, and of course that hurts in a game like this."
He pointed to Bayern's failure to create the single moment of absolute clarity that might have changed the tie's trajectory after Dembélé's opener.
"Somehow it felt like we were missing the final punch, that really clear 100 per cent chance. We still had a lot of shots and a lot of actions in the opponents' penalty area. But as I said, over two legs it's a one-goal difference against a very, very good team."
Laimer also reflected on the timing of Kane's goal — a trademark finish from close range after Dembélé had been unable to round Neuer — and what might have followed had it arrived sooner.
"In the end, that one goal came a little too late. I think if it comes a bit earlier, then the whole stadium comes alive again, the way it was there throughout the game, and then maybe we can still go on and win the game."
The defeat ends Bayern's hopes of a treble this season. They remain Bundesliga champions and face Stuttgart at the Olympiastadion Berlin on 23 May.