who cares?
did Gai's father serve a different purpose than gai serves now? he's the same fuckin' type. his presence only supports Obito\Madare\Payne's philosophy. the cycle is never ending, people try their best and wars still continue, 20 years from now (if not 2 chapters), Lee is also goint to bust out the 8th gate and kill himself. there's always going to be some evil ninja to kill and a friend to protect, whoope-tee-do,

it only undermines Gai as a character, seeing how he relives his father antics.