I'm sure this is not the origin, but Bez is a celebrity in England, a member of a 90s band called happy Mondays who didn't sing or play anything but just danced. Famous on the panel show circuit
Slander! What about the (occasional) maracas?
Those were bowling pins, it was all fake
Author here, yes this is the origin. I was trying similar names and a friend reminded me of Bez. Done.
Maybe it’s one of those weird LLM smells, like the OpenAI goblin problem.