Innovation is a good thing, but for many items on this list there's no more innovation happening. Google Cast and Airplay have been mostly unchanged for the last ten years, and the same is true for Airdrop and Nearby Share.
You can definitely make the argument about innovation in the messaging space, but RCS is very extensible. RCS Encryption definitely needs to be standardized, but I recommend you check out how Google layered it on top of RCS [1] including handling fallbacks for corner cases like switching your RCS client away from Google Messages before the system realizes it.
This is to say that RCS is pretty flexible, the key is handling the fallback paths in the extension design and working with other vendors to standardize promptly, so we don't end up with the same kind of broken mess that the carriers made.
You can definitely make the argument about innovation in the messaging space, but RCS is very extensible. RCS Encryption definitely needs to be standardized, but I recommend you check out how Google layered it on top of RCS [1] including handling fallbacks for corner cases like switching your RCS client away from Google Messages before the system realizes it.
This is to say that RCS is pretty flexible, the key is handling the fallback paths in the extension design and working with other vendors to standardize promptly, so we don't end up with the same kind of broken mess that the carriers made.
[1] https://www.gstatic.com/messages/papers/messages_e2ee.pdf