Apple missed its two-year target for completing the Apple Silicon, but does it really matter? No, it doesn’t. What we’ve seen for the Apple Silicon transition so far has been nothing short of impressive, and the transition shouldn’t be viewed as a “failure” because of one of the lack of an Apple Silicon Mac Pro.
Credit to Apple for doing such an incredible chip transition that they aren't technically going to hit their timeline and the Apple fandom is completely fine with it. We're swimming in great Macs, it's fine.