I’m gonna give my two cents.
I’ll start off by saying I agree with the premise, Enh needs more utility/defensives. I play around @2.2k-2.3k mmr, which is low but it’s my first season of actually trying to pvp - and I have much of the same issues you do.
We need another defensive (and we’ll get on in SL via Rocky giving us a boost of health, but that’s a 5 min cooldown for a 20% health boost, kinda of meh) but we also need utility. Elemental can do everything we can (burst damage, short CD long range kick, purge, grounding, offheals) only better. They also have Lasso, which is absolutely powerful, not to mention they don’t have to waste a pvp talent with RTL - a gargabe mandatory pvp talent that breaks CC but gimps your damage if you don’t pick it. They also get improved pets, which come with a Rocky that provides an extra wall and a stun.
We need a signature spell, Shamanism isn’t cutting it. We need “our Lasso”. Something that makes it so that if you pick enhance for your comp you aren’t basically playing with a gimped Elemental.
I’m not quite sure what it could be. I’ve thought about “Wind Wall”, something like a DK’s Anti-magic zone, but that has a 50% chance to reflect the spells back to the caster, or someting like a “Tornado”, that knocks targets to the air similar to what Arcane mages can do only a little higher. Just ideas.
What I hate about our current iteration is that we are 100% dependant on numbers, and that makes it super hard to tune. If we depend on our heals to survive, they are either too strong (Season 1 BFA) or too weak (Season 4 BFA).
We need more people to play enhance on beta and give feedback. Look how fast they reverted Dark Transformation changes for DK. We need that kind of attention for enhance, but it seems none of the big names play our spec.
Hopefully they’ll give us something to create our own niche, as right now in BFA choosing to play Turbo over DH/war, Thunder, TSG or WLP is just bad for the warrior.
Edit: I like your suggestions for incap totem and totem health in general. Vesper totem is super strong it seems but it’ll be just another thing for enemies to right click, you’re 100% right.