No - its nots selective amnesia. The football was ultimately played on the ground and between the likes of Rashford, Lingard & martial - they all had a very similair type of playing football. He wouldnt have to cross the ball as much, he played much more like a forward & ultimately was there only to cover for memphis's poor season.
Fast forward to Jose - he is supposed to play as a LM who provides width more than being central to goal, plays in a team that hoof's the ball alot, plays around players who are target men ( a complete different type of football to LVG's system), playes in a formation where he has to provide defensive cover due to willingness by the manager to not control the game's possesion - how can you say that Jose & LVG's system is not the same.
Lukaky would have struggled for LVG, Martial would as he is- struggle for Jose.