I think the zap nerf is too much. It takes two of the most popular new strategies in the game, zap-lalo and zap-witches, and makes them 100% invalid in a single update. Contrast that with how SC has continually made QC-hybrid harder over the past year; it’s not like they made a single update in the game that made the strategy go from being the strongest to completely unworkable.
Zap-lalo is still very hard to master. And zap-witches is easier, but can be stopped with good base design. I don’t think completely eliminating these strategies was necessary to fix the game.