Interesting on the hockey curve analogy. Bobby Hull and Stan Mikita of the Hawks were the first to do that, in the early 60's. No rule against it, and when they did put a rule in, they didn't take it back to flat sticks, they just set a maximum it could curve.
Sounds like the recognized the advantages of the curve blade, but took a guess as to "how much was too much." I recall that too much curve just allowed too much puck control. They limited that, while allowing the increased ability to hit the slapper. Not sure if it was done scientifically or not, or just a guess.
USGA sure uses science to make its decisions, and probably faced the same dilemma - how to best use the new tech, but how much is too much? Many think they guessed wrong, I know, but they sure did consider trying to strike the best balance. Especially true when they want the one set of rules, and consider the millions of avearge players who need distance, vs the 100 pros who hit it "too far", whatever that is.