I mean, who do you think is more likely to be the careless one in this situation: the guy who has 1.5 million in inventory locked up and will be homeless in a few months if they can't access it, or a trillion dollar company to which all this is not even a rounding error?

My own experience is that Amazon doesn't even bother verifying that complaints were submitted by the brand before acting on them. There's multiple documented cases of people impersonating brands to get sellers kicked off Amazon.