I'm replying to this here since this is supposed to be the feedback thread:
@Nibuls' point about build variety and ideas is something I feel this affects as well; my current build in Therka does have ramps and that sort of thing, but my main way of moving around is starting to be with jumping, with platforms built at the more or less correct heights.
I have to agree that if the ledge climb was working properly then I'd not feel so bad about about losing some jump height, if the intention is that we can ledge climb at the block the level of our head.
I honestly don't like grapples, if the intention is that they're the main thing, rather than the jumps.
As someone with chronic pain, anything that feels "fiddly" is a nightmare for me, and that's what grapples feel like to me. The jumps have decent air control and I don't need to do anything different, so I can just carry on normally, only having to think about my direction/momentum a little bit and often I still make mistakes of where I want to go/be. The grapple is frustrating for me to use, which is why I don't even craft/keep any anymore.
I would much rather invest the same total amount of points (or more!) in jump related skills because of this.