pinkgirl34: Hole 7 is difficult because it's impossible to reach the green in 2 [...]. From the white tees, pro rank, it's 502 yards.
It's routinely possible with upgraded clubs & balls. In fact I've overshot the green on hole 7 with my 2nd shot quite a few times. You don't even necessarily need tailwind. If I use full backspin, I regularly get 240 yards out of my 2nd shot with the Rapture 3W (a club that is nominally only rated 220 yards). Not to mention the TaylorMade 3W (danger of overshooting the green every time, unless there's headwind).
pinkgirl34: I think it's impossible to reach the green in 2 on Hole 4 on any tee unless you pay money and have special equipment.
You're correct. Once you use upgraded clubs & balls, reaching the green in 2 on hole 4 is no problem; in fact, the main problem becomes how to avoid overshooting the green. And in trying to avoid that, you often land in the bunker.
Perhaps you could have specified in your ranking of holes that this was meant to reflect the view of players who use basic clubs. With upgraded clubs, hole 7 is no longer scary, although it's still very challenging. In contrast, hole 15 is a terrifying hole under any circumstances, even in the August All Ladies tournament played from red tees by everyone.