Our full clear of the Abyss of Mordath T2c raid from yesterday proves otherwise.
Minstrel does heal, what doesn't heal as much anymore is bolster. You actually need to use other skills as well, theres alot of combination for big heals which are still valid. read your skills and practice to adapt to the changes! Not because right now you personally can't heal as before anymore doesn't mean there is something wrong with the class. Minstrel did get nerfed a bit, but not even close to the point where it wouldn't be a valid healer anymore.
I suggest you thoroughly read the changes, talk with other minstrels and try to adapt and improve … practice is key!
P.S.: Drizzels is using proper english, enjoy it!
Fearendur, Captain R12 -- Challenger of Gothmog, Original Challenger of the Abyss, Lead the Charge at the Anvil of WInterstith
Eleannora, Rune Keeper R10 -- Aemeryllis, Guardian
Odyssey - Prime