Because you read what you wanna read.
Moyes and even Fergi left us in a big mess. That's very different with LvG.
Martial, Rashford, Blind, Herrera, Shaw, Lingaard, TFM and even De Gea are still here because of LvG.
He brought top scout from Netherlands who is still at United and doeing fantastic job.
Academy reforms is a great thing he did.
Mourinho needed just 4 players in addition to make a winning team.
LvG always said that the next coach will be enjoying his work, true that.
How was Moyes better, remember the mess he left?
If Mourinho had to pickup the pieces from Moyes you want be seeing at the pitch now what we are seeing after LvG.
He deserves respect anyway. Rome was not built in one day and so MU either .
Only thing is that many are success supporters and give credit only by winning. If that was the case when Fergi started his name wouldt have so much greatness as he have now, if I remember it took him 3 years for tbe first success.