What bizarre timing...
Even more bizarre that people are celebrating it, awful news.
Why? I reckon Andy doesn't need Lendl any more, and he was ruining his natural game anyway. He's got a perfectly good coach in Delgado. What good did Lendl do him earlier this season? The fact that in the run up to RG he said he didn't even know how badly Andy had been playing surely speaks for itself. I don't know why you think this is a bizarre time to split either, because it seems perfect to me, given that Lendl seems to have effectively disappeared into the sunset just as he did after Andy had his back op. Not only that but he didn't even look all that interested when Andy decided to try to go for the USO.
Surprising considering that Andy is having a Miami winter training block.
He can have one without Lendl surely, particularly as Lendl would only start pushing him again, and that he doesn't need right now.