Then they'd be an Innova sponsored joker, lol. It's just a bad look, a "c'mon man" moment in my eyes - do you want to be a pro? or a parking lot hustler? Maybe Shaq (someone mentioned him) can do it, but shaq has some financial insulation in case of a fallout.
That said, I don't see a whole lot of that attitude from the top guys/gals, regardless of sponsor. This is a generalization, but IMO that kind of blind loyalty seems to come from newer/younger pros, or those that are not at the top of their "teams".
Either way, I think as a pro, you shouldn't fanboy your own company. It just makes the separation harder if something goes wrong. It's a business, and turnover will become more and more common if/when the size of the industry grows.
Just my .02 - pros should treat their fans well.