For users of macbook air this move makes sense. for macbook, real 'pro' users I don't see this as a good thing. Major advantage of running iOS apps? but who wants that?
it is solely done to control more their products and profit even more.
it would have to be really powerful to be able to handle bootcamp and windows at the same performance level. Apple was never about performance so this change is not about intel being slow. it's to control and lock in one more aspect.
and no, windows for arm is not 'windows'. The advantage of having bootcamp and windows is to ensure it will run all windows apps, no problems, not just having a windows-like UI