Oddly, when a guy gains 10 strokes on the greens, you don't hear people clamoring over these high MOI putters and an unfair advantage. When Koepka won his majors, people weren't up in arms about his ball striking being too big of an advantage. It's because all of these things require skill. Much like distance requires a ton of skill and ability. If technology made everyone hit it 330, they'd all be using it. The biggest technological advances in golf had been made to the athletes, not the equipment.