It's probably a mix of things. My experience with mother companies makes me think that EG7 isn't much involved in any decision making. My guess is they simply have targets that must be met, and policies to follow, and then SSG is responsible for deciding how to do that. In a way you could say EG7 is responsible, but I imagine any choice lies with the devs.
I also think SSG is looking at a bigger picture than the players are and act on data that we don't have, which is why many of the choices they make are unpopular with part of the playerbase. I'm not saying they're necessarily the right decisions, but who's to know.