I can smell the "arrogance," but do you think any of the claims in these paragraphs is false?

When I read that, I interpreted it to mean something like "Yes, he does come across as arrogant, but it's okay because everything he's saying is actually true." It didn't come across to me like a separate question - it read to me like a rhetorical question which was used to make a point. Maybe that's not how you intended it?

I think erratio is saying that it's important to communicate in a way that doesn't turn people off, regardless of whether what you're saying is true or not.