The abolition of pushback could potentially make classes more balanced. Even without pushback casters are still subject to silences and school lock outs, which have little effect on melee classes. Casters also have less armor to mitigate physical damage, though this is somewhat balanced by a lack of magic resistance in melee classes.
The thread had plenty of disagreement though, and the discussion got pretty heated. Some cited a frost mage's ability to rule the playing field and kite melee enemies while beating them senselessly with spells or the explosive damage of unmitigated pyroblasts. Without pushback all casters would become more powerful.
A change to abolish pushback would be seen as a PvP balancing act. In PvE groups casters feel the burn of this mechanic much less. A good tank will keep aggro and let the casters merrily heal and DPS away. Pushback is pretty frustrating when playing solo and there's noone to hold aggro.
Do you believe the time has come to lay pushback to rest?