Her coach is wrong, and likely costing that team some of its performance.
Absent a glaring weakness, 65/20/15 holds up over a wide range of handicaps, genders, etc.
I could see how women might shift it slightly, because if you're hitting it 220, the fairways play a lot wider… but if you're hitting it 220, you're also hitting longer clubs into many greens, so you have to be better with a 5H from 170 than a guy does with a 9I from 140. Y'know?
The best players on the LPGA Tour are the better ball strikers, just like on the PGA Tour.