Atalanta didn't win with luck rather it was proposed changed in game setting and thrashed Bayer Leverkusen in the Europa League final, therefore handling Leverkusen their first defeat of the season which was in total dismay for Bayer Leverkusen and their supporters. We could remember vividly how the club won the Bundesliga title without a record of defeats but did attain to draw points.
This is very true, it will be unfair to say Atlanta's victory at the Europa league finals was by luck, they deserved the victory they had in that game, their performance was very good and impressive which earned them the victory they got and it became clear it was no way by luck or chance the won such game, even Leverkusen was at some point appearing surprised how the couldn't make it to gaining dominance in that game as probably expected of them.
Leverkusen wasn't any better side in that game, I wouldn't want to use the bias of the fact that they were able to put up very brilliant performance form the beginning of the season till this point to say that they were a better side in the finals and Atlanta was less deserving of the victory which can invariably be said that they were lucky. Leverkusen have been a good side throughout the Europa league games from the beginning to the point they got to the finals, Atlanta can be said to be lucky only at some stages of the Europa league games especially when they met Liverpool but with Leverkusen they were only a better side.
Obviously Leverkusen appeared like they didn't expect such loss athe finals of that game as they haven't