TO does not want to allow intentional draws
Let me repeat what Thomas just said: such a prize structure greatly incentivizes Improperly determining a winner. When 2 players at 3-0 are playing their final round, the game naturally reaches 1-1 and time is called, they both know that a draw will earn them nothing while a random winner who gives half of the extra prizes to the loser will net them both extra prizes, yeah, how are you going to explain that to them?
IMHO, you solved a non-existing problem by adding a very serious problem… In fact, when I organize any Regular event, I make sure to adjust prizes so that draws are a completely valid option that cost the players nothing. Most people want to play anyway, I really diskike DQ'ing people for IDaW, and why would the TO hold principal standards about ID's and force that upon the players?