Why Aren't Freeze Decks a "Thing" Right Now?

I run freeze deck since season 1. Climbing the ladder is more problematic than ever. I'd usually hit diamond in 3-5 days. Right now Im still level 46. Zombies have very powerfl early game now (fossilheads, quickdraw), that makes setting up rather difficult. Disco-naut, quickdraw and fraidy car are new one-mana cards that basically force you to use your supertrick on them, if you've got one. If you got freeze supertrick, it's usually gg on turn 3. untrickable zombies make freezing with iceberg lettuce out of question. I am doing pretty good against imps and lategame-oriented decks, but aggro decks (dance, pet) are really tough to beat now. I would even say that playing freeze deck is suboptimal right now. But on the other hand, my winrate is still above 50% and it's nice to have a challenge once in a while. Although i do hope some zombie cards will be nerfed.