The thing that is raising peoples eyebrows here is not that there are people able to vaporize MVPs that quickly, but rather that they seem to be able to GET to the MVPs that quickly.
Prior to it spawning, there should be no way to know where it is.
If we assume the person killing it is using mirrors to get the exact location when it spawns, he will still have to travel to that location. While the time this takes can vary, it's unlikely to be less than 10-15 seconds on average.
So, can we explain these "hacks" by players using convex mirror in the minutes before it spawns, and then as soon as it spawns, spam flywings until they're sorta close and then speedpot to MVP? This probaby takes 10-20 seconds if the player doing it is aggressive.
If we can't explain the speed at which the MVPs are getting killed that way, and they're getting killed that fast repeatedly, that is suspicious.
Does anyone know how long it takes for people with perfect gears to kill these MVPs once they find them? That would be a useful piece of information