He probably could have explained it better. But I think, since it's Bloomberg and it's focused on business and market news, he was using terms that they do already understand. If it was CNN or ABC News, he'd have to explain it like to a 5 year old. If the anchors got lost during his answers it's on them for not knowing the market terms he's talking about. His answer to "how are they paid in Steem" could have been much more simplified, but I think he gave his long answer because of his audience.
She is not wrong in that some of the content is low quality from people trying to make a quick buck, but that's easily countered. I hope he gets more interviews.