Yup, that's just one point of the list of frustrating gameplay next to blizzards and static emplacements. Deep snow totally backfired. It makes gameplay slow and static and is placed in the most unfortunate spots. The most hilarious thing is that units don't take deep snow into account while retreating.
However, I doubt that they are going to change it after two years now. I bet it's just another "spectacular event" as plane crashes.
On another note, if Relic really wanted to design the game as a competetive title, they wouldn't have implemented deep snow like that. It looks cool, and that's what matters for them (at least in my opinion).
