There is probably some legality involved. Signs have more than informative meaning, where not pursuing this officially has broader ramifications.
Just the unauthorized visual distraction factor can be used as a means of argument in court until the matter has precedent in case law established.
Apple is doing insane stuff with iMessage making SMS useless with Android. It is intentional manipulation. I’ve only seen it on some Apple kernels with the latest iPhone. My old man’s phone absolutely will not send or receive an SMS unless I message is manually turned off and then it won’t get iMessages. Apple has always been a shitty company, but this is next level insane. Just get and use the Signal app and ditch all the proprietary garbage and manipulative bs IMO.