Honestly, Leverkusen went 51 games unbeaten, even though they did ended up losing at the finals, that doesn't mean that they had a bad season overall, winning the league at Bundesliga is already a huge achievement, no team achieved that over Bayern in over a decade, so being able to do that alone is so greatest in my perspective.
Plus, they are going to play the cup game, which I really feel like they are putting some immense pressure on themselves now, they had confidence that they can beat anyone, but after Atalanta I am damn sure that they are not entirely sure.
But to be fair, they are playing a team one division below so it would be even bigger shock if they lose. They will most likely finish with a double, and that is going to be a great thing for them, we shouldn't judge them on just one game.
Leverkusen failure in the Europa League final certainly surprised us all, not only because they failed to win the Europa League but broke their unbeaten record this season and made Leverkusen have to bury their dreams of getting a treble winner this season, their defeat in the Europa League final certainly will not change our view of Leverkusen as a team that is quite great this season, despite atlanta has the broken unbeaten record they are this season and of course we still have to appreciate all the performances and also Alonso success in bringing Leverkusen into a team that is quite great and able to break Bayern Munich dominance this season.
Missing out on the Europa League Is certainly painful enough for Leverkusen after all their consistency so far, but I think it's time for Leverkusen to pick themselves up and focus on the League Cup this season to face the DFB final that will be played soon, I think of course Leverkusen will devote all their attention to the final and heal the wounds after their failure in the Europa League this season.