His job in this presser is to avoid giving out information to people whose job is to extract it from him. They want to know things like: is Gordon leaving, is Onana starting, and whether Allan is starting. He can tell them that Allan is fit. I think he hinted that he doesn't plan to start Onana, but that could be a smokescreen.
A press conference like this one is like playing chess while behind and trying to salvage a draw from the mess. The best outcome is not giving a pack of ravening journalists what they want, which is a story that advances their career by generating a bunch of clicks. There were rather more land mines on offer today than usual, and you're never going to see a grandmaster look like they're enjoying searching for the one line that forces exchanges down to a known drawn endgame.
I think people are reading too much into that one. I think it was simply an admission that he knows he works for the most ruthless owner in the Prem when it comes to manager changes, now that Abramovich is gone.