Sevilla is the most luckiest team in the Europa League sometimes I imagine how they end up defeating strong teams in Europa League. I don't see Sevilla squad better than all the team squad in the Europa League but they are too lucky to win their games in the league. For Sevilla to win the Europa League it is a surprise because the performance is poor.
I also see that Sevilla is having extraordinary luck in the Europa League so that Sevilla can win the Europa League this season, even though it is very clear that Sevilla's own performance is also not good enough when compared to its other opponents. But his opponents were not lucky enough this season so that the Europa League trophy belonged to Sevilla.
Actually you are right Sevilla are very lucky. We have to admit that they have managed to outperform other big teams in the league. The Sevilla team performed so well entirely on their own merits.
I only agree more when Sevilla is said to win because of luck, but I disagree more when you say Sevilla performed well alone in the Europa League. Now let's take a look at some of the matches faced by Sevilla in the Europa League, such as the match with Manchester United where Manchester United's defeat was caused more by their own defenders. Likewise, when Sevilla faced AS Roma in the final, Sevilla greatly benefited from an own goal from an AS Roma player so that a penalty was created which gave Sevilla a pretty good result.