I don't think you're missing anything per se. The things is war is just a bit tedious to grind. Once you get gear tho, I mean I know speaking from past TBC grinding as prot spec in mostly or full epics, you really can end up being an energizer grinder, going from mob to mob. Your downtime or healing really tapers off alot once you get to the point of outright negating/mitigating or simply avoiding a larger bulk of incoming damage.
This can vary from mob to mob though.