I have to agree with Truth here. I notice teammates getting hurt a LOT more the moment my ice shield has dropped from them.
I don't agree that the holds are lacking... Freeze ray and Bitter Freeze Ray are two 'must-haves' in a set that has no proper heals, for damage mitigation, whether you solo or play in a group. No; they're not [censored] effective as Ice Dom holds, but when slotted even a little (1acc, 1RchrgRed, 1HoldDur) with SOs, you can keep any even-con perma-held. If you want to 6-slot it, which isn't a terrible idea, you could keep oranges perma-held too.
It's a very strange corrupter set, hence it being the source of much scrutiny and debate.