It's not really close to the same situation.
When Apple went PowerPC, they were going there for performance, to support the huge percentage of the media content creation market they had wound up with, back when PCs didn't support such things very well. Motorola wasn't competitive with Intel, in a big part because in 1996 Apple was the last standing 68K personal computer company and didn't have the market share to sustain that kind of development for Motorola/Freescale.
The idea with the AIM Alliance was to promote a standard PowerPC platform (PReP, I mean CHRP, no PPCP, ok, maybe CHRP... ) to rival the Intel/IBM Ad Hoc standard. That was not a bad idea.
The problem was that, immediately, other comapanies did this better than Apple. Power Computing won a big chunk of the market. My company at the time, PIOS AG, launched the first 300MHz Mac Clone available. And then when SJ came back, it was curtains for the gherkins... he was the original closed, appliance computer, and it had to be "mine, mine, all mine". Of course, SJ neglected one of the main points of AIM -- enough volume to keep hardware competitive with Intel. So in 1997, it was absolutely obvious that Apple would eventually leave PowerPC. The PPC970 was nice... for about two weeks. Intel pretty much invented the way all successful modern chip comapnies work, with multiple tweaks of each technology and three independent teams always working on the Next Big Thing. So there's a new thing every six months. That's how nVidia won on GPUs... doing the Intel thing.
But these days, Apple's scared off their high end media content creation people by phoning it in on the Mac Pro. A new major upgrade every five years, whether you need it or not. They have built market share mostly from iOS coattail people... like my sister Kathy. Maybe this report is nothing, but it makes perfect sense for Apple to move macOS closer to iOS. It saves on development efforts. It lets them push out more advanced ARM tech before it's possible to make that low enough power. It will win more coattail customers. The average desktop PC user today doesn't need a faster CPU than a decent ten-year-old PC, and Apple's ARM cores are already faster than that.
Not my next computer, but then again, the last Macintosh I'd even have considered using was the one I was the CHRP machine I was developing back then Jobs put the kebash on the whole thing. Apple doesn't build serious computers today, anyway.