Feels like sort of a non issue, even the bottom of the page pushes people to apps like Whatsapp/Signal. If Google wants better iPhone messaging - can’t it just ship its solution in the App Store? Not really sure why Apple must update iMessage for Google to get what it wants.
I personally love iMessage and use it and Signal primarily - I don’t like the idea of Google dictating its feature set, especially considering its horrible messaging track record.