> I don’t see how giving an up-leveled employee time to adjust to a new responsibility scope is a bad thing.
It's not a bad thing, but the parent you are replying to never said otherwise. They were talking about a fake performance rating that is given for political reasons.
Anyone who thinks that performance ratings aren’t dog and pony shows have drunk the corporate Kool-Aid. Either you have a manager that likes you and will play the game to give you the best politically feasable ratings because it’s the tool they have as middle management to keep you around or you will toil to meet whatever arbitrary expectations someone with authority but no power has and you should run.