This is the worst stats for a Premier League manager I have witnessed. How bad Manchester United have been this past years, looking at this stats I can agree that Amorim is not as good as persons hype him to be honestly. Any other manager could do better than Amorim with the current squad.
These statistics can be partially justified by the fact that last season was sacrificed for the sake of rebuilding the team. Roughly speaking, he was given the opportunity to do what he wants for the sake of prospects, and the current season was sacrificed. The problem is that now after two rounds United has 1 point and it is difficult to come up with any excuses. If United does not take 80-90% of points in the coming rounds, then the experiment can be considered a failure.