I think the people who would buy skins are unlikely to push back. The more vocal pushback is probably from people who, rightfully so, hate the micro-transaction game model. I play games to escape from capitalism, not to be forced to participate in the worst variant of it or face the choice of not being able to play at the same tier as everyone else.

Micro-transactions in general are gross. NFT backed micro-transactions are not more or less gross, but they're still gross by association./