So have we made any progress arriving at some kind of consensus re the OP's valid, in my view, point about bigger standard homebrew packs of dry yeast, for a standard 5 gallon batch? I like to pitch at a high rate to control the yeast profile, which, for me, produces a better balanced beer. And if I'm using dry yeast these days it's because I'm brewing a lager, which requires at least two packs. A pack for half a standard batch seems to be a bit of a con.
Given that we are all idiots, I would say that neither have we reached consensus, nor should we necessarily aim to do so.