I think it's never gonna make us OP but make it fair because of our weak dmg.

1 sec stun from fire and ice is gonna just give us more chance to kite. Lightning has only 25% and time has root, not stun.
It's not gonna make them stun forever but give opponents a couple of secs to attack.
Bit like I said mage have shortest range attack. So we need to be in their attack range to attack too. This is pretty fair situation. (So I don't agree to nerf axe throw. It's only range attack of warrior. I don't know how long it removes crit, as long as cool time is shorter than it, it will be fine because now rogue does 1500 to 3000 dmg on crit for each AS)

I do love mag too. Only mage have all 26 lvl ring and necklace. (lol)
Like you said some adopted well, but I think generally it need to be improved.
Naturally warrior can heal and stay alive long, and rogue can do +1k or much more dmg. What for mage? Putting all 3000 mana on waarrior doesn't work, and rogue kill mage 1 or 2 shot. What we need is better STUN to stack up our dmg on them.
If STS is looking for class balance this should be considered.