Jeremy Clarkson said the above, as he usually does on every A-Level results day. People on every A-Level result day also criticise what he says. People are mad at him. From teachers to random people on twitter just sh*tting on him.
People look for something to hate. What for? People are brainwashed to think that these A-Level results are what determines your life. So when they hear someone else telling otherwise, their senses goes crazy and they start hating on a guy that disagrees with the root brainwashed belief. People cannot handle the truth.
This is an opportunity for some motivation for people to not feel bad and do great things even if they didn't do good in their A-Levels. This is true if you ask me. These results do not define you. Some people do not realise this hence this is another reason that they hate.