Oops I treated your submission page as your game page, apologies for the controls bit!
And for the walls, I guess it's a "to each their own" situation. For me, it's frustrating that plain walls behave as a deadly trap, because it feels counterintuitive in the context of a platformer, even if continuing to move mid-air would be less realistic physics-wise. But I can see where you're coming from: since your rules are consistent, part of the experience is learning that walls are a deadly trap, and how to avoid them.
I do love the game though! I spent way too long playing it, which is why I bothered complaining about the wall.