I mean.. The taskbar seems like a Dock now. The interface seems very Apple Finder-esque now. I feel like they're just aligning with macOS now. Not that I'm complaining, the video and the interface all are sexy.
I'm not a fan. A centered dock does look pretty, but to me it's not as intuitive as a left-aligned screen. Especially since you would be navigating to the "Start" menu a lot. Getting my mouse bottom left is more natural than "some random offset of dead bottom center". I can't tell if the icons get larger as you hover. That sort of magnifies this problem, as the start button would shift left as other icons are highlig…
There's a name for that: https://en.wikipedia.org/wiki/Fitts%27s_law
and the fact that their UI people somehow have forgotten about it speaks volumes.