Personally I think it'd make sense to keep this one as broad as possible. Payment processors shouldn't be able allowed to impose any kind of extralegal censorship upon anyone using their services. The itch thing can be used as an example of course, but the strongest reason for EU to get involved is probably the fact that it's precisely what they're doing, and the implications of corporations having that kind of power over businesses in general. "If they did this to Steam and itch, they could do this to any business for any reason including political lobbying" is pretty compelling, especially in a time when the trust between EU and US has deteriorated, and the talk here is to rely on the US less for important services.