And the fact that Earthbind root had no DR, a 10.5Sec CD and you could just sit in GW to kite any Melee Cleave teams.
Having an Elemental vs TSG was basically free win, which is rather ironic because Warrior and Death knight usually owned Elemental quite hard in 1v1.
But in the end, does it matter why a spec was strong?
I mean as Elemental i always saw my main strength in PvP to burst down people quickly.