I agree and I think the past results of Sevilla cannot be a reason for them to say they will get good results this season during the Europa League because during this season Sevilla had a bad performance in both La Liga and Europa League, even if they do the best performance they can do, they still won't be able to beat a team like Manchester United because for manchester united currently Europa league is the first priority.
It is only right for Manchester United to make the Europa League this season a top priority because apart from wanting to get the Europa League trophy this season, it can also serve as proof for those who are making a comeback within the team this season. So it's only natural that Manchester United must make the European League their priority at this time because in the Premier League, Manchester United's chances of chasing the top of the standings are very slim.
I would not say that Manchester United should prioritize the European League, because the English League is also very important, especially since their position is not completely secure at the moment. I'm worried that when they don't do a balanced focus, it will actually hurt them in the Premier League. Their current position is 5th, they have 2 games ahead of Tottenham who are 4th.