I’m torn on this subject. I don’t necessarily think Essences should be completely account wide because I don’t feel like Bob the hunter alt you do a random BG on once in a blue moon should automatically have the rank 3 raid essence, rank 3 m+ essence, etc… Likewise, I don’t think it makes sense for Jill the gatherer alt of which you just fly around herbing and doing world quests for enchanting mats to automatically have rank 3 PvP, rank 3 raid, etc…
Some work should absolutely be required. However I’ll also admit currently, having to do the amount required is a bit much. Make it easier, definitely. I’m against total account wide though.
Like, Rustbolt/Unshackled/Waveblade. They could easily make Rank 3 purchasable on alts for 25% of the cost or something once you hit Friendly or Honored(provided you have the rank 3 already unlocked). Almost all of the “grind” aspect is removed but you are still required to do a little bit.
The PvP ones? Make it so you have to earn the rank 1 on a character basis but upon doing that, the rank 3 is unlocked provided you have it already on another character.
M+ essences? Just make it so a +4 gives rank 1, +7 gives rank 2 and a +10 gives the rank 3(all still needing to be timed). Essentially, just make a timed +10 or higher give rank 3 by default, assuming you already have rank 3 on someone.
Stuff like that, I dunno. Make it immensely easier, removing most of the grind aspects, but still require just a bit of effort. That would be a great middle ground in my opinion.
Of course, if they do make them account wide I’m not going to complain, but I’d also be 100% content if they just made unlocking them much easier for alts.
Honestly though, I’d be surprised if they didn’t tweak the essence system for alts in some way come 8.3, due to the addition of the new essences and legendary cloak. If you think of Legion with legendaries, we didn’t get Wakening Essence right off the bat either. If you think of Balance of Power, they didn’t make that easier for alts right from the get go either.
TLDR: I’m against total account wide, but won’t complain if it happens. But I’d prefer making the essences easier to obtain on alts to at least still require a little time/effort.