Based on these lists I think by the time the season rolls around 14 of those 15 USU players will make a roster, whereas I only think 10-11 BYU players will make the cut.
So USU doesn’t have double the amount of players in the league, but they have had more players drafted in the past decade and will have more players getting playing time this year. So if a player has aspirations of going to the NFL, Utah State has shown to be the better option for getting there than BYU.