A lot of this feels to me like Rpic thinks they’re a bigger deal than they are. No doubt they make a lot of money, and they’ve made Apple a lot of money. I think though that their attempt to take Apple in the court of Public opinion is going to fall flat, because there are a lot more iOS users than Fortnite on iOS players.
This naively assumes an iOS user is on Apple's side, and assumes that the court of public opinion excludes those users with neither iOS nor Fortnite yet have general opinions and business-stake on iOS options.
I should also note that, for some of us, the court of public opinion and the court of legal opinion are different. I can disagree w/ Apple and disagree w/ their practices being deemed illegal.