Mourinho knew exactly what he was doing today. Defending the centre of the park is the most important thing when it comes to beating Arsenal and dropping (read: 'resting') Pogba was the right decision on this occasion. I remember he failed to track Chamberlain in the game at OT when we scored the equaliser. Rooney, obviously, has been the biggest thorn in our side for years.. up there with Drogba.. and generally raises his game for us. Bar Valencia for Tuanzebe (who played well), nobody was 'rested' for anything other than tactical purposes.
The only reason he didn't get the result he was hoping for was that he came up against a pragmatic Arsenal side who didn't want to give United anything easy like we have in the past. The counter attacking style was largely nullified by a patient Arsenal and once we got the slice of luck for the goal, Jose's one-dimensional approach was laid bare for all to see.
If United fans do genuinely believe that he 'put all the eggs in one basket' on the day that Liverpool handed control of top 4 back to you - then I can only imagine that you would be furious at the unnecessary risk. Obvious to anyone, though, is that this is simply an excuse.