I agree with that, except Conte, Mourinho and Ranieri - for 1 season, I don't remember any other PL side winning much with a 2 man midfield and all played quick counter football, not much dilly dallying with the ball. If they could though, it doesn't mean it's impossible.
I also think we need a 3 man midfield to cope with the press and aggression of most of the PL sides.
Amorim unfortunately, doesn't seem to know what he's doing, he is trying to control games with many defensive players that cannot pass and a lightweight midfield. Ok when you build from the back you have 5 players instead of 4, but once you get over the initial press what do you do with the ball? We never have any options.