This isn’t just sensitivity over Hyper Fighting, it’s a matter of someone forging someone elses work to make a profit, without the original makers consent. It’s just a dick move and not cool.
As for Hyper Fighting specifically, it’s especially touchy as it was a commissioned game that a lot of money went into to making. It was never publicly for sale because, well, come on, it’s literally SF2, and no one wants to deal with copyright stuffs. Because of this it wasn’t funded by a huge group of people, but mostly one person. People get especially butt hurt over it because it takes a special kind of asshole to take a game with that sort of history and rip it off for a profit. Because of the crazy artificial value it’s also inherited, it’s an extra kick in the nuts for the people who made this possible, because we all know damn well how much it costs to make a reproduction. The real work went into making the rom the forgers burn onto it.