What I mean is, the mid-majors and lower-end P5 schools suffer from a net outflow of 3* recruits that turned into NFL caliber players and move to a P5 school and make $$$. Players get to prove themselves and develop at a smaller school and get their dream offer after a year or two.
It allows top tier teams to recover quickly from roster mistakes and NFL draft attrition, and deep pocketed schools without much of a historical track record of success (Texas A&M) to put together very talented rosters. Hot new coaches can bring a lot of players from their former team and other schools to build a roster quickly.
Highly talented backups can go from one blue chip to another pretty seamlessly. Joe Burrow is an example, and that was back when you had to be a graduate student to transfer without a waiver.
If parity means more contenders, then yes. If parity means a more even distribution of talent, then no, especially with the hoarding of TV $$$s by the biggest conferences.