I think the his price tag and being the captain make them evaluate him in another way than the rest of the team.
Emotionally it is different, but in reality a goal is a goal and the one with most goals wins the game. Forwards also get critique, but it is rare for a CB to not be criticised, needs to rack up perfect game after perfect game. Maguire got most of the critique for his poor clearance, and it was maybe well deserved critique. But look at the comedy defending of that corner.
First I think it is James who is alone covering the corner against 3 opponents. If they wanted to play a short corner we really invited them to it. I think it is was Bruno who woke up very late and ran out to cover but too late. Needs to be more alert and pro active. That is part one. This is not how you defend corners. Then after the clearance, what is the purpose of Martial? He is just watching him shoot. We are horrible at corners, but it is not only down to the four defenders and DDG, defending corners is a team effort. I would say this goal was on the team as whole more than on Harry, and even more on Ole for not having a good structure at defending corners.