Uh... noob hales can't get better by never coming up from the crevice because of people standing over the launchers. They won't get better from this map, but they don't leave either. You can't jump up from the crevice to the top, making the only ways to get up the launchers. Tell me, how would anyone get better, except at baiting possibly?
There's about 7 or 8 different places where you can launch yourself up top. If they're camping one, go to the other. They like to camp the ones next to the capture point, but people hardly even know of the existence of the one next to spawn, or the one that leads into the small cave at the far end of the map. Plus it's huge, which makes for good super jumping practice.
The game is fun because it's hard. If it were easy, people wouldn't play it. Getting camped a bunch makes you better at combating camping, just like playing against pyros all the time makes you better against pyros, now doesn't it?