Don't think the transfer rule would have the "sky is falling" (all our good players would go to Bama to play football and KY for basketball) impact that everyone projects.
These days, the great players will always go pro when it is an option. Most other players will stay with their program as long as that program on a solid footing. Sarr (and Brown) transferred because WF changed coaches and WF had been epically bad for years; that is exactly the situation when players should be allowed to transfer without sitting out. Anyone surprised or upset that a couple players decided to leave the current WF basketball program have not been paying attention. WF is at the bottom, but we are building the program back to where it can and should be. WF will be a destination program.
Solid Power V programs (like those coached by Forbes and Clawson) are not going to typically lose their best players to other programs in the coming years. Newman was a weird situation with a bunch of contributing factors (one big factor was that Hartman remained close in Newman's rear view mirror, and if Hartman took any Newman playing time next year, which was a likely scenario, Newman knew it would really hurt his NFL hopes).
The grad transfer rule has been around for all of Clawson's time at WF (which applied to a lot of stud WF players like Herron, Haynes, Hinton, Strnad, Cam Glenn, Benzinger, Duke Ejiofor among others) and Newman is the first key contributor that has left the program (sorry not counting Tabari Hines - he was just another guy). As WF continues to have solid coaches, WF would net gain good/contributing players if the NCAA transfer rule was adopted. Amazing to me how it's WF fans that perpetuate the LOWF attitude. Good/great players want to play WF, and this rule is just another chance for WF to land those players. FWIW, this rule has been around and most other sports for a couple of years, and the better athletes in those sports generally elect to play for WF rather than leave WF.