the big teams dont take the FA cup seriously if they are in a title race or deep in europe. the FA cup lost its glamour decades ago due to the CL.The big teams don't even get in to the europa league to see if they'll take it seriously, because they're all in the champions league.
When they do end up in it, it's mostly a "why the fuck are we here" from the fans and half arsed performances unless they're having another crap season and need to qualify for champions league.
You can literally get europa league qualification in the prem now from finishing what, 7th is it? Or lower? I can't even work it out anymore, we'll probably have Nottingham Forest in it next season and I wouldn't be fucking surprised if they win it, they'd be one of the top 5 favourites.
you said liverpool a couple years ago earlier, in which when klopp realised his arrogance had underestimated atalanta he threw the kitchen sink at the tie to try and get back into it. pep gave us the same arrogance when we made the final by putting a weakened city side out against us in the 1/4s of the CL, thought he could take the piss and bench KDB.
no ones saying that the europa is harder to win than the FA cup which is debatable as the side finishing 12th in the prem has just won it this year.... but the eufa cup has far more prestige in world football than an english domestic cup!
outside of the big 5 leagues, teams would rather win the europa than their own domestic league. europa is a far bigger achievement for the likes of celtic and rangers than a poxy scottish prem title.