well that's it, Sevilla this season is like being showered with luck which always provides opportunities or opportunities to score in every game like the case of Sevilla vs Man United when Maguire put the ball in his own net, it's clear that it was luck.
in the other matches in the second leg as you said that Sevilla also had several times of luck that brought their team to the next few matches.
and in the next match Sevilla will compete with Girona, this is a threat to Sevilla after Girona can beat Real Madrid with a score of 4-2 this makes Girona more confident in every match and I think Sevilla must be careful with Girona if you don't want to lose at home himself and let's see if Seville will have any luck again.
Sevilla has confidence performance after success lead to semifinal stage in Europe League and the winning trend continue in domestic league after success defeating Athletic Bilbao last games, right now Sevilla have been move to 11th standings and seems have guarantee stay in La Liga for next season after success reached 41 points. I don't think with Sevilla will have huge motivate in domestic league because realistic seems difficult for finish on Europe League or Champion League spot zone.
Sevilla will move their focus to Europe League semifinal and against Juventus in semifinal its become their ambition for winning Europe League and one ticket automatically to Champion League next season.