Hello my friend, I think it is a bad idea because there are people who want to represent their group, so they go afk buz as the name and tag group appear to people. Soo Negative
I don't understand what you want to point out. Players that is AFK in CEs are only representing their group by doing nothing? I don't even know why some people are AFK inside CEs and wont let the other player come in.
5mins is too much IMO, so the better solution is if X player stays AFK for 90 seconds without moving a red text will appear for that AFK player in the middle of his screen giving him a warning and a count down from 15 seconds to 0 to move, otherwise, that X player will be jailed automatically