There's another thing Apple do with bad products, though. The original 13" Aluminum Macbook launched in November 2008. It was discontinued in June 2009, in favour of the 13" Macbook Pro, which offered a permanently built-in battery (the previous model had a removable battery), and dropped Firewire. That stayed on sale, subject to regular spec bumps, until October 2012, when they bumped the screen to a retina display ...
I'm not an insider, just a long-term Apple watcher (been using Macs since 1991): what seems to happen is they used to get an internal goal to fill a niche in the product range by a certain date, and if the performance target isn't quite achievable they ship whatever they've got -- then iterate on it, possibly with a model branding change.
The Mac Pro looks like a classic case of this: Tim Cook committed Apple to being 100% Apple Silicon across the range by the end of 2022, they missed, but they had to ship something to keep the Mac Pro brand alive. So they shipped a turkey (a Mac Studio with PCI slots and a higher price tag).
What happens next is: either they ship the real Apple Silicon Mac Pro in a year or two (with who-knows-what changes, but something to differentiate it from the top of the Mac Studio range other than price), or they admit defeat and kill the Pro range altogether, or maybe downgrade it to be the name of the top end Mac Studio.
But this model won't be available for more than two years, max.