Only skimmed about half of the manifesto so far (so maybe they're getting to this), but: Wouldn't one practical difficulty be that Pi somehow magically shows up

Only skimmed about half of the manifesto so far (so maybe they're getting to this), but: Wouldn't one practical difficulty be that Pi somehow magically shows up in a lot of formulas that aren't (directly, to the layman [like me]) related to circles and geometry? Then that would have to become 2 Tau everywhere, and in places where it's Pi squared it's 4 Tau-squared, etc. Buggers up a lot of stuff with unnecessary constants (like 2 and 4). Otherwise, sure.