In WoW there was long time ago problems with servers, very similar to ESO. Issues was solved, but also, Blizzard gave free game time to players, even it read in ToS that they don't have to. Show of good faith so to speak.
So I think it would be reasonable for ZoS to give everyone -lets start bargaining high like eso PTS changes- month free eso+ time. People are really mad seriously, because they have raids and whatnot and they are scheduled them and basically wastes their time.