Not at all, I wouldn't care who gets the money. Often company structure and relationships are complex and many times people who boycott a brand end up buying from the brand owned by the same company.

More importantly, It's a well know that people in the game industry are overworked and underpaid and it's not because of the Apple's cut. I don't know about the situation in Epic, but if it happens that Apple lowers the rates most certainly the difference will go to C level executives(that are not underpaid already).

If Apple gets the money, they at least will pay a decent salary to their people. The game makers can consider cutting bonuses if the money is tight.