Some other wall points worth investigating - Refueling Tower has a wall on the waterfall near the junkyard/caves area. It’s the big pool with the Tyrant, climbing into the cave. The water obscures vision of the ledge into the cave so it’s very common to suddenly find yourself in an unclimbable tailspin - which drops you straight down into the Tyrants jaws, of course.
On the other end of the spectrum, The Distillery has ledges on the sides of the buildings that I’ve noticed the very top tier hunters using/potentially abusing. They’re thin enough that the monster can’t walk on them, so the hunter can stand in the middle of the wall and it becomes very difficult to knock him off even with a dead on rock throw. Wasn’t a game ender for me but I thought it seemed fishy.
That cheese does sound obnoxious but I would agree that walls are trollish to new players right now even in the best case. Is there an alternate solution, like changing it so that the walls are friendlier but you lose your climb if you turn your back to them?