A lots changed in the game from a year ago. Vile Blasphemy, baubbles, Twisted talismans, and Torcs are a lot more useful to melee builds with the introduction of Epic Destinies. Arguably the torc is more useful to melees end game now.
With the changes to AC and the torc's proc change its way more useful on someone taking constant damage now. From what I can tell Torc no longer procs unless the monster breaks your AC and DR and damages you. The damage monsters do in EE is insane now so taking damage on most blue bars isn't an option. Torc is really a lot more useful on melees ( with Epic Destinies or class abilities that use spell points) than on pure casters and healers now. Blue bar using Epic Destiny melees, Paladins, Druids, Battle Cleric/Favored Souls and Rangers are getting way more use out of it than Pure healbots, Sorcs, and wizards nowadays.
Its hard to build a pure caster or healer that can self heal fast enough in EE content to make torcing the sp bar back up viable anymore and in any content under EE you probably aren't needing to refill your mana anyway nowadays.
Torc is still decent for leveling a blue bar but end game its nearly worthless unless your a rare Warforged Sorc Hate tank or Pale Master tank.
With having had to heal and cast in EE Citw and other EE quests and seeing how well cocoon and other spell point using abilities help I'll gladly let melees roll on SP items nowadays. Especially since the melees are constantly getting hit and regen the SP while my blue bars either have too much AC/DR/Miss chance for torc to proc or go down in 2 hits from an EE mob and rarely survive long enough to get any mana off a torc. I'd rather have a melee using the sp they get back from the torc or Vile Blasphemy click to save themselves when all heck breaks loose between mass heals or knockdowns instead of the item being wasted on myself when at most my healer or caster would get about 200 mana back from it during the course of the raid. I'd also much rather have them not having to use SF pots as that lowers their DPS greatly and the faster the group can beat down the monster saves me mana.