I'm not sure why people would actively want their game to require either EGS or Steam, though, even if it's convenient. EGS has business practices that drive a lot of people crazy, and Steam has an awful security track record and was also convicted of anticompetitive pricing. (Though people seem to like Steam's business practices even with that conviction, which also always struck me as a little weird.)

It seems like not requiring either one would be the more neutral, agreeable position to take.