We know ice man is bugged with his frostbite consuming when you block a hit but here's the plot twist, personally i feel like he's better this way, he doesn't benefit at all by having to apply multiple frostbites cause the damage is singular
So basically this bug prevents you from having to parry or punish the enemy's heavy attack, you can simply block

which makes his fight a lot faster and therefore more useful for bg
IMO kabam should leave him this way, 1 less bug to worry about xD