no? everyone takes posthaste all the time and toe is not in a prohibitive space, especially with a 10% max hp tacked on to it.
none of the examples you’re posting are similar at all especially because you keep forgetting hunters also have exhilaration which is a massive self heal on a less than 1 minute cooldown + disengage does a LOT on top of your suggested 10% max hp heal - same with toe.
you’re ALSO forgetting pve exists entirely. i know pvp exists, and I know your qualms are almost entirely in pvp with your suggestions, but the ideas you’re suggesting would be incredibly unhealth for pve