Those effects magnitude should be quite simple to reduce, and that would imo be very much worth the time investing in, especially as they are touted as a selling point for this game.
They are some mechanics that make coldtech a pain in the ass.
Units in yellow cover protecting themselves from cold, like in a crater, get pushed outside by a friendly vehicle moving close. Then, the unit you thought safely sheltered start to die by cold without you noticing. It creates a paralel micromanagement game were you play against buggy mechanics instead a human player.
That happens plenty of times, were nearby mortar shells exploding, units pushing themselves, etc, throw out your units outside a cover or a fireplace warming area.
I think that it would be fine that, while blizzards are active, units idle more than 10 or 15 seconds would automatically search nearby cover to shelter the same way autocover works during gunfire.