Hmm... respectfully disagree. I'm *very* regularly in situations where I'm dragging and dropping audio from various places, and it would be super helpful to be able to quickly align a bunch of new regions to the same start point. In fact, I do a *ton* of work that isn't on a normal "grid" at all—clock time, maybe, but that's not necessarily very helpful. It's by no means the majority of times that I dig down, define the tempo and metre, and start snapping everything to absolute positions.
So, 95% of the time for you, sure, but maybe not for everybody.