I agree with this. I thought there was a data lock which would be well before October 24. In other words, we get the world as it was, let's say, at the end of the summer transfer window. Managers who are sacked a third of the way into the season should still be at their clubs at the start of the game. Then they can be removed at the winter update.
My other concern here is how this is done. Last year (FM22) there were issues with coaches who were removed in this way by SI had their histories all messed up. Ole was one of them. If you went into his history, it sort of didn't have an end date to his time at Man United. There were many other, lower profile managers who had similar issues. I know it's not game breaking, but it does mess with immersion.
I hope that Steven Gerard will at least not have any mention of Aston Villa in his history, as he technically never went there if they remove him at the start of the game.