Not arrogant at all
That's why I out the disclaimer in there. Do me a favor and look up the definition of ignorant, consistent with the manner in which I used it.
As I said, not pejorative or insulting.
It literally means most people do not know the facts of how the deal went down. I'm guessing you may not have previously been aware of Mr Bright's conditions of sale, given your reaction where you flat out stated "who cares" about why it happened. I'd say the why is at least as, if not more, important than the how. You may disagree and that's fine.
If you were offended or considered that an arrogant comment, my apologies. But only for the misunderstanding. It was proper application of a word that is often used in insulting fashion, but wasn't in this case.