I feel like we are missing some important backstory here, chief of which is “WHY ARE YOU MELEEING A MAGE?” A hunter complaining about ice armor is like a mage complaining about mend pet, ffs. But while we are at it, have you seen the top end damage on LLok? Thing hurts.
But back to the ice armor, the only instance in which this could impact a fight between hunter and mage is if the mage is specced into frostbite (pro-tip: Unless they are leveling or fully frost pvp specced, they are not, and even a lot of leveling mages will not put points in frostbite because the procs can seriously screw up the AOE grind that is en vogue) AND you have already mishandled this encounter so badly that the mage is up in your grill and dumping instants and spamming their target last target keybinding for when you feign death (pro-tip #2: I’d bet 90% of all mages don’t even have target last target keybound) so they can finish you off with arcane missiles.
But really, any competent hunter should wreck all but the sweatiest tryhard mages, min maxed with engineering. With the gear that is available to mages right now at this point in the game, unless they are raid buffed and have a full ice barrier up, an 8/8 GS hunter can kill a mage with little more than an aimed shot, autoshot, multishot rotation. Really.