It takes a team of Ph.D. level engineers to implement left-hand taskbars in a performant way! You can't expect ordinary folks from the Windows shell team to code at that level!
Probably, though I wasn't even talking about AI, I was talking about Microsoft's objections to when Casey Muratori told them that Windows Terminal sucked and they should be able to write one that goes at 60fps easy. The Windows Terminal team said "It would take a team of PhDs to do that", so Casey wrote a basic, but 60fps, terminal emulator in like a long weekend.