I would eat my shoe.
It's not happening, ever. I'd wager lots on that if I could collect prior to the end of eternity.
Everyone always says golf is relative. If that were really true, we wouldn't be having this discussion because no one would care that the ball goes extra far and courses are too short to challenge elite players. We'd all just say the 55 that Rory shot to beat Phil's 57 was relative.
In the real world, numbers matter. People like breaking 70/80/90/100. People like hitting 250 yard drives, or 275 yard drives, or 300 yard drives. People like reaching par 5s in two. This hypothetical ball rollback might take 50 yards off a pro's drive and only 20 off a weekend player's. I don't buy that pros really get this ridiculous "turbo-boost" from the ball that's out of whack with the rest of us, but let's just assume they do for the sake of argument. That's still a 40 yard difference over the course of a long par 4 or par 5, and the weekend player will be pretty annoyed to not be able to reach those holes in two.