No, it’s never been the primary concern, but they do nerf cards specifically for wild balance – especially if they’re also overtuned in standard. I’m not sure why they’d have to monitor wild as closely as standard to make card adjustments to it. I’m surprised there hasn’t been more of a meta upheaval in wild with all of the un-nerfed cards, but paladin and mage continue to dominate there pretty unchecked. Much like in standard, lol.

Spring Water is also the primary enabler for the most oppressive deck in Wild at the moment, the newest version of solitaire mage. The deck can very, very often OTK the opponent by turn 5-6 (by cycling through most of the deck on the same turn if necessary) and isn’t even very susceptible to aggro as it has so many cheap stall and “free turn” cards.