Royalty-free blanket patent licensing is compatible with Free Software and should be considered the same as being unpatented. Even if it’s conditioned on a grant of reciprocality. It’s only when patent holders start demanding money (or worse, withholding licenses altogether) that it becomes a problem
The fact that iPhones are getting this before Android phones without Google Play Services tells you all you need to know about the nature of RCS. Android has lost all of its intrigue and fun in favor of becoming GoogleOS