That wasn't the point of this suggestion?
It's about real people who are breaking the rules softly. For them it's just a quick rejoin and they don't really think about it. If you got kicked for a broken rule, it is totally okay in my upinion to wait 5-10 minutens before reconnect.
I don't understand why it is a bad thing that rulebreakers leave the server? I think that TruckersMP have enough fair players for the game to exist.
Nobody said, that you have to wait 10 minutes for a headlight or a high ping.