Night Witch: an unfortunate release

So, Night Witch is pretty OP. Not unbeatable, but it looks like iterations with some pretty obvious cards that i was going to be paired with seems that is driving everyone insane. I'm not here to complain about that. Other people with more knowledge of the game mechanics is already doing that. What bothers me is that we've been suffering a terrible rhythm and release ratio since the otherwise excellent March update with those bate mini events and that - at least to me - have made the game life feel slow and static, and why so? I remembered that they said that they were going to increase the release lapse so cards would be tested better and don't enter the game in a unbalanced status. And then, the Night Witch. I get that we are a inventive and uncomformist community and that not everybody is going to be always happy, but Supercell should do better.