That’s fair. Apple’s been shifting away from exclusively using proprietary protocols and connectors over the last decade. Most of their remaining proprietary use is in addition to industry standard protocols and connectors now. Adding RCS support in the fall is a long-awaited adoption. They were holding out in effort to leverage GSM to adopt an encrypted RCS standard, but it didn’t happen.
It’s also the reason why Siri was first to market and fell behind Alexa and Google Assistant so quickly. It took Apple a decade (2011-2021) to create the hashed then encrypted relay system to collect private and anonymous recorded feedback from customers who opt-in to improving Siri.
Competition just kept everything as user feedback data. I’ve read horror stories about the people who worked at Alexa recording review sites.