I don't think that's true. I think Fedorov and Syrsky clashed because Fedorov wanted Syrsky to make another attempt at an offensive on Crimea (stupid idea, very doomed) and Syrsky was saying no.

Fedorov's deep strikes into Russia have produced some spectacular propaganda but has it actually improved their war position at all? No, I don't think it has. So he's been thrown out and someone with a more traditional approach is coming in.

What this probably means is that the deep drone strikes are going to stop and the resources going to them will start appearing on the frontlines again. That's not going to enable an offensive though.