They literally made a current phone model (iPhone 15) unable to run the new AI stuff by giving it less RAM, full well knowing when they built it what the implications would be. That's just a fact. From a business stand point, I see why they did it... every phone company wants a 'super cycle'. We're in an age where the hardware is already damn near perfect from each manufacturer, so it's very hard to create demand for new phones.
Edit: I bought the 15PM, and the increased RAM was one of the reasons- I posted here in September saying how I expected the iPhones with less RAM to be left behind fast. My prediction proved correct even faster than I anticipated.