That in this case seems highly likely. I doubt that this is the true origin of Bannete as GAME FREAK rarely lets in on everything about a single species. Also, it comes down to individual cases, this is why it happened to Max yes, but perhaps not everyone in the same way. I don't think that is why ALL Bannete want to do that, but definitely the one you spoke of.
Can you please tell me the name of this particular episode so I can have a look myself?