The thing that put pressure on Apple was that other app, whose name I can't remember, which came out a few weeks ago, and did iMessage and RCS by signing the user into an Apple Mini in their data centre and pushing the iMessage to the app on the users phone.

That is what you'd call a security nightmare! This app effectively can view all your iMessages.

THAT'S why Apple made this decision. Not because of Nothing.

Apple when said it was doing it for security, and on the RCS side will be working with Google to implement it securely and correctly.

Apple could have serious lawsuits if customers messages were being intercepted by these man-in-the-middle apps and there's no way for Apple to stop it. They could be sued because they are at fault for not adopting RCS and thus leaving the customer open to using these shady companies.

Trust me, they don't give a rat's ass that some nothing company in a hole somewhere is trying to do this. At best, it might have confirmed their decision to adopt RCS because they saw yet another company (nothing) planning to do the same. Eventually you'd have tens of companies doing the same with massive privacy implications.