I wouldn't criticise anyone who wants CL qualification above all else, as I recognise the importance of the CL cash for the club's long-term growth. However, I'd still take the FA Cup and 6th over no trophy and 5th. With the way things have panned out, it's a great opportunity to win the FA Cup. Give Unai another tilt at the Europa League, and I think we'll be in contention for the CL spots again next season anyway.
I still think the most likely outcome is that we go out to PSG, finish 5th, and reach the FA Cup final. After that, it'd be down to what happens on the day and either Citeh or Forest would be tough opponents.