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.
It's true, Atalanta didn't win because of luck, they won because of their hard work and the strategy they implemented was successful in beating Leverkusen. It was a success and they even won with a landslide score.
They succeeded in implementing very good defense so that Liverpool could not easily break into their goal, on the other hand, on the front line they were very effective in converting their opportunities into goals. That is a very good thing, even though it is not in accordance with what we predicted at the beginning.
Atalanta succeeded in proving that they could also provide something surprising, not only could they beat Liverpool, who were the top team, and they could even beat Leverkusen, who had never been beaten this season.