Whyyyyyyy? Is it because T20 is game of chances? You can almost say its outcome follows a binary distribution like flipping a coin. You can win just by luck and it suits BD because by virtue of shear talent and application alone they cannot win. So, 20/20 offers a better odd for BD to win. Then why not invent a 10/10 or a 5/5 or for that matter a 1ball/1ball? Oh I forgot! Actually there is already a three balls version in the tie-breaker of 50/50. Even that might be too much for BD!
"....no victory or loss is final. They will compete again tomorrow and there will be another shot at redemption." Sambit Bal