having took a break for a few months and came back i can see how the meta-game has evolved.
shield stacking (yes particularly but not exclusively with sorcs) is a problem in pvp now.
stacking shields in any similar MMO ive played is unwise. this is because usually classes will exist that have some form of purge type abiliity that removes buffs from enemy players. So stacking all your eggs in one basket (shields) only works till someone comes and removes them from you with a purge. this means you have to rely on more than one thing to keep you alive. You need to have a reasonable amount of health/armour/CC to fall back on if your faced with someone who can remove buffs.
ESO has no such ability, so here's where it damages the meta. the only counter to someone who's stacked up with massive shields is to stack as much burst as possible to burn the shield down and hopefully get them dead before they can stack more shields or if they are a sorc can just simply spam bolt a few times and re-stack.
so both sides of the equation end up being forced to put all their eggs in one basket, this has a snowball effect. more folk stack maximum burst to burn shields, this encourages shield stacking in order to survive the burst.
now where sorcs enjoy the really crazy gain from this is that by stacking magika exclusively they increase power in shields while also increasing power in their damage and increase their resource pools with ZERO trade off. templars shields are HP based. so without significant points in HP their shield is fairly weak, plus short duration.
but before the sorcs start screaming NO because a purge would hamper them the most, it would hurt other players as much. removing things like scales, immovable etc. purge would be a powerfull tool, But NOT op, because to slot it you have to give up some other ability and spend resource to purge folk, but a well timed purge would be powerfull.
it would make folk have to rely on more than one thing to run around and wreck folk. it would stop shield stackers being able to tank lots of folk while dishing out huge damage. If you ran into 4 folk you couldn,t expect to get away with burning them down by popping potions and continually stacking shields, cos if even one of them slapped a few purges on you the rest would wreck you cos your god-mode got removed.
in effect it would increase variety of ways to play, otherwise its gonna be pretty much stackers versus gank builds with nothing else in the middle.