I'm happy that they addressed it & communicated it. I appreciate the honesty in Grant's tweets stating simply that they weren't able to implement it. I'm not a programmer so I don't know what it takes to produce deep snow.
However, I find it interesting that we were able to get deep snow in TS2 & TS3....both games that are years old and in 2018 they can't do it.
I have to assume that it's the TS4 game engine that doesn't support.
I'm disappointed but it's what I've come to expect with this game. We've seen each iteration of The Sims get better & better....but TS4 has been different since it was released. It's not a bad game....I've just come to expect that the game is always going to fall flat in comparison to TS3 or TS2. It seems we got so much content back in the old days....and these EP's have been subpar at best.