Sevilla are a clown team - they managed to draw with City (and thus ruined my excellent multi bet with a total odds of 7.2), but in La Liga they have zero points after the first two rounds. Moreover, they lost two games not to strong teams, but to Valencia and Alaves. I have a suspicion that the limit of their luck has ended and although they are unlikely to remain in the relegation zone in La Liga, you should not count on a repeat of the previous season in European competition from them.
Truthfully they have become a really interesting team. There has been a serious level of drop in their La Liga performance. Inconsistent form doesn't help them reach anywhere nice in the standings. But they are still very interesting that they can just go for the Europa League title at the same time. I know it isn't like the Champions League title maybe but it is also a valuable success for a team like Sevilla. Because currently I don't consider Sevilla among the biggest teams.
They are far away from their look in the old times in the La Liga. But their concentration in the Europa League is really fascinating. They have become the king of the Europa League thanks to that.