Well, you had other issues going on within the group. IBM only seemed interested in server chips and later on their higher volume chips for the Nintendo Wii and Xbox 360. Apple alienated Motorola by pulling their license for MacOS right before they were going to release a series of laptops that would compete with the PowerBooks. Motorola was not going to prioritize chips for Apple from that point on. Apple finally gave up and moved to Intel after that.
That’s the same issue. Apple was selling less than 2 million Macs then. Why invest in a low volume business?
We are seeing the same issue now with Macs. Apple would never have the resources to invest in the M series if they weren’t also selling 150 million A series iPhones and iPads, a few million M series iPads, 20-30 million S series Watches and miscellaneous other A series devices like AppleTVs and monitors.
The issue now is that even Apple is not willing to invest the resources needed to make high end ARM chips to compete with Intel on the very high end.