Remember that futa and transformation are quite specific kinks, so your audience will change depending on their inclusion or not. I'm not saying this to kink-shame or belittle anyone, but just as people who want futa in their games will look for and play futa games, people who don't will not.
Speaking for myself, futa is not my thing so I either skip futa characters if they play a minor role in a game or completely avoid the game if it's a futa MC or main LI. I am sure there are people who do the complete opposite.
Having a choice is a good compromise (if done correctly), but otherwise you should do what is more up your alley and stick with that, because your player base will expect different things from you. Its like NTR, you can't please everyone.