I believe Manchester United will bottle the only opportunity they have to qualify for the champions league next season even as they seem to be more interested in the Europa league. It was a narrow escape against Lyon and I believe Manchester United will always be the same when they play Bilbao because they might not have same luck as they had with Lyon.
Yes, with the level of inconsistency Manchester United is displaying this season, I don’t also think they can confidently win the Europa League despite the fact that it is their easiest route to the Champions League because they don’t have any hope in the Premier League as they are below the top tenth position in the Premier League due to their inconsistent performance in the Premier League.
Manchester United can still win the Europa League if they can defeat Atletico Bilbao in the semifinal, because they can defeat Tottenham in the final even though they are of the same level of performance this season.
It is also difficult to predict whether Tottenham will make it to the final because they will face Bodo/Glimt, who eliminated Lazio. They will have a difficult team in both matches. Also, every team that makes it to the semi-finals is very strong. Manchester United's opponent is of course more difficult. If Athletic Bilbao eliminates Manchester United, they will be champions in the final. However, I cannot say the same thing if Manchester United makes it to the final.
We can't consider any team weak in the semi-final match, even if a weak team comes there, it will be strong. If Athletic Bilbao can beat Manchester, they will be the strongest in this league, but I don't think they can beat Manchester because Manchester's performance is consistent, especially in the Europa League, they are performing very well towards the end. If Manchester United can beat Athletic Bilbao I hope Manchester United will give something good in the final because in my opinion Tottenham and Bodø/Glimt will not be stronger than Manchester.