Mostly due to the size, but I agree. Plenty of power even with the regular M1 but that’s what’s great about Apple Silicon. If they make a value Mac (which I doubt Apple would go below $999) it likely won’t run an M-series processor even just for the sake of branding and I could see them going with the A series, would make the most sense in such hypothetical scenario. But they want the iPad to fill this spot and that’s why they gave it a keyboard with trackpad and essentially made it a mac without the macOS.