Honestly, this move just sounds like another attempt by Apple to kill off "Right to Repair" legislation. Note how this is only being offered in the USA, for starters. But think about it.... Traditionally, everyone with a Mac that's past the warranty period ran up against Apple telling them their machine was "too old" and they no longer had parts to service it, etc. That prompted people to go to third parties for repair work. Now, Apple can just tell people to keep up renewals on AppleCare and claim that negates the need for any outsiders to service even the older Macs.
(Most likely, once your Mac gets older than what they want to keep parts for and deal with, they'll do what I've seen Chrysler do with its "lifetime vehicle warranties"; put in a clause that says they reserve the right to pay you the current book value of your computer and end the service agreement.)