Between 1983-2012 BYU played Utah State 24 times. 16 at Home & 8 on the Road.
Once BYU joins the Big 12, returning to that scheduling format is not BYU big timing Utah State. Unlike Utah, BYU would actually keep the series going. The consistent H/H's with Utah State didn't start until BYU was desperate for games as an Independent. BYU is no longer desperate for non-conference games. They can't even fit all the ones they want to play into a single season's schedule. Utah chose to abandon the Utah State series altogether when USU asked for any home games. Agreeing to play USU 2-for-1 is simply what BYU needs to do once they join a P5 conference.