Morchok is soloable. Tried today, got him down after hitting berserk 2 times (~30M with nerf-debuff in 7mins = ~71.5k dps)
Yor'sahj.. First try I was nuked by those red beams from adds tbh. Next try I ran there into bubble to give them time to come closer, after bubble popped all cds, Sacred Shield of 200k/tick absorb made me immortal. Nuked the boss with same single-target glyphs as on LK, fun of extreme level. He's just melting down with this method..
Anyway.. Zon'ozz.. Didn't search for any paladin videos of it. Tried same tactic as on Yorsahj, but failed. Dmg overwhelmed me a bit + the ball hitting wall finished job (being exact fall damage after). Any clues? Maybe clear part of adds? But what with the ball? It was late cata when I was there last time, I dont remember if it's throwing ppl up only once or more. Falling Avenger / bubble / hand of protection would make it easier. On the other hand maybe just try to bounce the ball as intended (but probly with no adds, or at least with less) to get vengeance and +%dmg on boss.
Bit too sleepy to try today, looking forward for some clues
// Edit:
Tried it, but somehow I can't clear whole trash. Cleared 2 packs, on third (when you face a boss standing at portal its the one on left side) Claw lifts me up and when I'm going down im getting under textures and dc. Idk what's making that. In firelands there was a problem with dcs on textures with low fps, but 90fps isnt so low. Bah, gonna send a ticket and go to sleep.
Anyway the ball is the key. Due to getting over 100k every few secs from pack on left couldn't kite it too long, but with stacking it to 2-3 (ye, fail) I managed to bring him down to 70% in 3mins. Gonna wait for ticket or bring some ranged to nuke that shit for me and try again tomorrow.