Most Android phones use RCS, so it’s on-subject here since most of us don’t pay attention to iPhone news - and is welcomed news because of #2’s answer
You ever been in a low or no signal area, but have wifi, and try to text an iPhone user? Ever try to send/receive photos/videos with an iPhone and they look like garbage? Tired of getting SMS’s in group chats of “Mom loved ‘Please poop in the toilet next time, we are tired of cleaning it up’” instead of it just “hearting” the SMS message? A lot of new tech coming out today started from something that “was good” and was built on to make it better.