Last version of Strategus, some clan consistently exploited the night time system by changing fief owners every time the current fief owner's night time ended. This seems like it may be the end result of the dev's solution to that problem. I'm sure this is going to be inconvenient, but it's the asshats the exploited the system last go around that ruined the convenience.
But who knows, maybe the dev team has something other solution like being able to change it once every 10 days or something and since it just recently changed, you would have to wait 10 days to transfer ownership. However, that's just some possibility that popped into my head. Pure speculation