[Strategy] Did they nerf queenwalk?

Like the title says, did they nerf queenwalk again? I know about the reduced healing by multiple healers which was introduced a few patches ago. But in the past 2-3 days I've been farming with queenwalk and giants and the queen is losing health with 4 healers and 2 th9 point defences on her...

I've seen a similar post about this, but he was ridiculed about not knowing about the reduced healing by multiple healers, but this is definitely not the problem here.