I think that ten hag will be trying to win the first leg like what happened against betis. MU won't even worry although people called that sevilla as king of europa league.
Sevilla was undoubtedly the strongest team on the Europa League platform. But this season their performance has declined badly. This team was in the relegation zone for a long time in La Liga. Their performance is very poor. Also, I don't think their performance was very good against Fenerbahçe in the last round. It doesn't look like Sevilla will win against Ten Hag's match tactics. The Manchester United team is now much more organized and stable. Beating United is still difficult against any team.
Manchester United have had the usual experience this season when dealing with La Liga sides. In the group stages they faced Real Sociedad, in the play-offs they faced Barcelona, in the round of 16 they faced Real Betis and now Sevilla will challenge them in the quarter-finals. I think Erik Ten Hag can understand the playing style of the La Liga teams now so it can work in their favour.