the equipment evolution of the last 30 yrs has been one of benefiting the equipment manufacturers at the expense of the courses themselves, and that's no doubt because the equipment guys were funding tv time, print adds, and player hat and bag billboards, and not so much the course owners doing so.
that said, equipment has been evolving since the first Scot hit a ball with a stick into a hole, and trying to limit the impact isn't new.
the 460cc max did so, as did the COR limits. (though too little too late with both).
as to the Bryson DeChambeau effect, i oppose being too quick on letting him impact rule making.
as far as BD is hitting it, everyone points to his equipment and body, and totally doesn't notice that he's also taking literally twice as hard a cut at the ball as he used to. (not by added strength, but added exertion).
imo a lot of his added distance is just his swinging much much harder than he used to.
that all said, i'm not at all convinced that his added distance has made him anymore competitive than he was prior to his physical, equipment, and swing exertion, changes, and while he did have a win in the Open, i really don't see his overall play and ranking as being any different than normal progression for a young player of his ability.
yes, he's very good, but he was very good and an elite player before all this as well.
on a side note, don't be too quick to try and regulate against a single player, just because a player takes a different approach.
i always thought the powers that be were very unfair to Sam Sneed in making his croquet putting stance illegal, as there was no evidence it would change the game or gave him an unfair advantage.
it just seemed like an attack on one player.
let's not knee jerk legislate against DeChambeau to quickly either, since to date we have no evidence that any of his changes have made him any better player today than he would be without any of the changes he's made.
on another side note relating to PEDs, the PED industry has learned to somewhat circumvent regs and legislation to some degree.
that said, with Tiger, Rory, and Bryson, while all transformed their bodies, neither Tiger nor Rory hit it so much as one inch farther or better after their build ups, or were better players, and again, i think Bryson only hits it farther due to swinging twice as hard, lower driver loft, and longer shaft length, and all three of those come with down sides as well, which is why i don't think he is any better player today than he was already headed to being, prior to any of those changes.