I think what he’s talking about is not a Hunter ranged caster, but something that utilizes casts at melee range.
I’m imagining in my head like a Melee class that has to channel many of their abilities and stuff to unleash different combo attacks? Like think of the Aggramar boss in Antorus when he does [Taeshalach Technique] but have that combo of multiple hits happen after the channel
Idk it definitely sounds neat to me, Maybe have an actual brawler spec that uses fistweapons to unleash different combos of punches (although when I say it like that it makes me think of Monks.