It is strange these reverts are coming with Classic mode on the horizon. I thought the appeal of Classic was to play the old cards as they were played 7 years ago pre-nerf.
Albeit not all of those are being reverted, but it definitely removes some of the magic from this upcoming mode.
I get the impression this is Blizzard washing their hands of Wild and saying "anything goes". A cop out to exclude any future Wild balance changes, besides obvious broken interactions like with Wretched Tiller and Hysteria.
If one or several decks dominate the meta for several expansions in a row, the copy paste response will be "that's Wild, deal with it".
We need a new format that separates the legacy sets from the not-so-legacy sets ala MTG's Modern format. I'm not a fan of Wild just being a dumping ground for every set that comes and goes.