It was a half-serious answer.
Some people just can't admit that they wasted their money and will end up convincing themselves that the problem was just themselves, or that they need to 'break it in' or whatever.

Look at some of what he said '...It is not fast but neither am I...' '...I could use a bigger frame but it's fine...' He's not admitting they are problems with the bike and instead attributes it to himself.