Healspecter was dead on arrival in large-scale WvW. Shroud does not last more than 2 seconds in fights. The last-minute group support additions to the shadow arts trait line were clunky. Instead of going for “nearby allies gain x upon entering or exiting stealth”, they chose a detrimental approach. Did you ever try to catch up to a fighting ally, drop a smoke field and blast it?
The recent balance patch put even more emphasis on the glaring issue: Specter lacks reliability.
The change to Well of Bounty added stability to a skill with cast time, that suffers from pathing issues. Thus making it unreliable.
Heal through shadow step forces you out of position each time. Infiltrator’s Strike is as bad as Measured Shot in fights that are not stationary.
The old 1.5 conversion was not remotely enough for large-scale WvW. The best option to support was to take Shallow Grave and ignore the shroud entirely. In your shroud, you are supposed to go ham on the enemy and cleave in order to maximize the support. The incoming damage does not allow you to do that at all. Shroud health is a limiting factor.
Consume shadows was only working during the beta without the 5 second penalty.
Even Siphon is unreliable. Do you want to build up Shadow Shroud, strip boons or give boons, then use it on an enemy and pray your allies do not need it. You should add another f-skill for the allied tether and make the 33% revive baseline.
Specter is supposed to be an offensive barrier support like scourge and not a boon heavy healer like Firebrand, Tempest or Druid. Currently it is barely hanging on in small-scale and roaming. Almost every other spec outshines it, because its niche is non-existent. Single target healing without additional value is bad. Thief is severely lacking in that regard.
The shroud nerf is slightly annoying for DPS Specter in PvE. Shroud is unreliable for people that do not dodge.
IMO it was a mistake to nerf it in PvE, sPvP and WvW if the issue was only in sPvP. It is the game mode with the least amount of damage, which made Specter tankier as it was supposed to be. Just get rid of the shroud health and add vitality to a minor trait. Buff Specter’s life to the likes of Warrior or Necromancer. While you are at it, make the shadow force generation abundant or get rid of it as well and turn shroud into a kit like photon forge.