I disagree. The questions are posed as challenges but are not charged, subjective, or overly pedantic. I also don't see where he's trying to show he knows more

I disagree. The questions are posed as challenges but are not charged, subjective, or overly pedantic. I also don't see where he's trying to show he knows more than they do in a self-serving way. Some people choose to interpret any challenge as a personal attack. ¯\_(ツ)_/¯