I already have a screen and keyboard and mouse and a desk and I don't care about it being portable (so don't need a battery). So I don't want to pay for what I already have or don't need.
Plus I need use those things for the Windows laptop that work gives me when I'm working at home.
If I needed portability, then yeah, sure Macbook makes more sense. But the desktop isn't dead just yet.
I'm not super bothered about it being smaller, it's quite small already, although I understand the current gen has a lot of empty space inside the case, so I guess it makes sense to make it smaller and it gives the marketing team something to talk about.