Where did that number cone from?
The LPGA plays most of the year playing 6,400 yard courses (plus or minus 180 yards). Majors are played on 6,600 to 6,800 yard courses.
The PGA plays on courses of 7,200 yards with the same plus minus, with major championships played on course up to 7,600 yards.
We're talking 44 yards per hole, not 2 or 3. 44 yards is a HUGE difference
In addition, there is a sound golf reason for the shorter courses.
The design incorporates things like water & bunkers that make players decide whether they can fly it over the hazard or lay up. If a player can't possibly hit it far enough for the hazard to come into play, they are not playing the course as it was designed.
That's why the vast majority of weekend players shouldn't be playing the back tees. I've moved up because I don't, as a result of age, hit it as far as I used to.
I don't think it denigrates the women's game to play at distances consistent with the distance capability & course design.
I once played in a ProAm with Dina Amacapane. (Her sister, Danielle, was an even better player.)
I was playing tees 30 yards longer & still hitting it by her. But, she she still beat me by 5 strokes, and she spent the day offering tips & advice to the other 2 in our group. She wasn't even locked in, and shot 69. The fact that she was playing the course 480 shorter never made me think anything other than how good she was.
Finally, the game is supposed to be fun. Why would we want to reduce the fun by making the course an insurmountable length?