Not entirely true. My new No.1 Varmint is a 1-7.7". Now that Ruger is making the faster barrels, perhaps they'll offer them on more stuff.
I would actually have preferred the Creedmoor round for its possibly better barrel life, but I'll deal with that issue after 1000-1200 rounds or so, so possibly never.
Bet you wouldn't have a 1-7.7 twist on your new #1 if Ruger hadn't come out with the 6mm Creed..