[RussEfarmer]

While I agree it can cause confusion, the rule is structured this way for a reason. What the rule is supposed to do is keep the game balanced by revoking the power of a player to have an unfair advantage to get kills or play a certain role. Like if someone dies as a prop, they go to hunters to spawn as a prop again. A player who just joined going 0:0 is not gaining an advantage in game because they have not been introduced into the game yet.
And its not that hard to press tab to check.