The problem with that argument is that you don't get a line-item vote. I can't vote security +1, privacy +1, curated app store +1, no streaming services -1. I can't go to Apple and say "I'd love to buy an iPhone, but I want a $50 discount because you won't enable streaming games."

that's absolutely what i intend to do with my next phone. However, as a professional, i'm a bit stuck with that ecosystem (or google's one, which isn't much better, for other reasons)

I think it's implied that they likely will in the future. They just mention their experience an Apple developer to convey that they know more about what they're talking about than average.