I have one bizarre, niche, indirect concern which is that, if ground slams are no longer directly down (a good change!) but zephyr's divebomb IS still directly down then it's a weird indirect nerf to a warframe, making her less mobile than basic melee when her entire deal is supposed to be mobility. Something kinda similar happened with parkour 2.0, since coptering was no longer a thing, and the Excal rework, since his blade dash just became a better version of Zephyr's Tail Wind.
I only bring up Zephyr because of that indirect nerf thing though. I don't have a problem with any of the actual changes proposed thus far.