Interesting.  Have no good reason to be against it.  Though not sure of the reasoning for it.  They already get 5 years to post 4 years of certified play.  Plus, they can extend with medicals for season ending injuries up to a certain amount of play.  Plus, a FR can play in 4 games and unlimited post-season time and still maintain the RS status.  I get eligibility typically follows the length of time for a degree.  Atleast in it's inception probably.  Heck, there's guys out there now that's taken 6-7 years to fulfill eligibility, even w/o covid.
I am in favor of the Freshman RS rule though.  always thought it was jacked up in certain situations when you had no choice but to burn a RS for just a few plays.