But it isn't?
What if negates your commander choice, what if your army if infantry based? What if you're OKW with cold winter clothing? What if you lost a squad to mortar because their health got drained as they weren't near a campfire?
A competitive game should be player vs player and nothing else.
Plan ahead. If you choice strategy on the map which is not suited for this strategy its your fault.
Hp don't drain in cold, models just die until you put squad in warmth.
There already whole lot of RNG in CoH, which affect by great degree competitive play.
Map design may be problem, blizzard mechanic may need some tweaks, but just removing whole thing coz it changes how game plays on certain maps? C'mon.