Well, a general rule for base building that I assume any competent base builder worth their salt already knows, is don’t clump all your high DPS defences together to begin with. If you can only get both scattershots and a few point defences, the remaining infernos, xbows, eagle, mortar, wizard towers and clan castle will be more than enough to stop the witches, even with healers. I know, unfortunately, by experience.
And the above applies to many attack strategies, not just witches.
Another thing that was unfortunate about the nerf was...there are some strategies that work, more or less, but aren’t fun to use. There are others that don’t work very well, but are fun to use. Witches had the best of both worlds, very fun to use and generally effective on certain bases.
Oh well, all good things must come to an end. Back to queen charge hybrid, or some sort of yeti smash I guess.