Card games are the original gacha games. Look at yugioh tins, and gold series packs, special edition bundles, etc. MTG has had similar packs in the past.
If anything these nerfs have shown me how many people care about wild. I thought it was a dead format.
shadow priest loses this match-up hard. its 30:70 in favor of shaman. Perpetual flame and slogger push you off the board and are game losing every time with little to no counter play.
Token druid loses this matchup hard 25:75 in favor of shaman. same stats for quest warrior.
The only decks with favorable matchups against shaman are warlock, quest mage. quest hunter and secret pally can go 50/50.
Where did you even get these numbers from?