I'm sorry to pick on you because I read it all the time in this forum, but I just hate this top 4 obsession. There is only one reason why top 4 should matter and that's because it enables you to win the CL. Winning the EL does that as well and likely gets you an even better start (an easier group because it puts you in pot 1).
Top 4 is not a trophy. Go for winning stuff you can win. United is one of the biggest (in some regard the biggest) clubs in the world and should aim for nothing less than titles
Unfortunately you are a little naive then.
The top 4 is vital for the extra revenue, especailly with tighter FFP rules starting. We have a sponsorship deal with Adidas that HALVES in money if we don't make the CL. It's the competition that deems whether you're a big club in the modern era.
All the big name players want to play in the CL, and most important escaping the Europa league fixtures that travel you to places like Azerbaijan, Kazakhstan etc.
Not to mention the silly Thursday / Sunday loop we get stuck in also.
Winning a Europa league title didn't do anything for Jose Mourinho, and it won't do much for us now. Stopping ourselves from YO-YOing in and out of the top 4 is 100% more vital for many reasons.