As topic indicate. The issues with characters bouncing off/flying in the air off even tiny objects is for me and many others the single most annoying thing in the game.
1 thing is on mounts and open world content in general. I know the chances of you guys changing it are next to zero.
However. When it comes to dungeons (and even more so raids). It would be a massive improvement if you could avoid these "bumps" in all future content. Even if it comes at a small price of toning down the quality of the "look". It is so frustrating to die to such things when you are otherwise playing the mechanics 100%