This idea comes down to 'first come, first serve' which can be seriously annoying. Who was on the map first? Who hit the MvP first? Who was the MvP going after? What constitues an attempt to dominate the MvP?
There are far too many questions and arguments about this that will rise from this. I would much rather see things like the sign quest getting fixed before the incoming stack of support tickets about people reporting other players on this rule.
