Please note that we've updated the Mount & Blade II: Bannerlord save file system which requires you to take certain steps in order for your save files to be compatible with e1.7.1 and any later updates. You can find the instructions here.
We use it when we play comp matches, for example we played about 6 clan matches last week and we needed to kick someone in our team since one of our teammates crashed. We use this feature because a random solo queuing person is not gonna clutch for our team. And clan matches are supposed to be fought from clan members regardless. It is a great feature in general but people give it a bad rep for the times they get kicked.