The only reason this fight is likley still happening is because its the fight GSP wants. Diaz never earned a shot so punishing him is one thing but they are taking the fight away that Georges wants.
Diaz is simply scared I am convinced its true because in the UFC he has met his media obligations except when it involves fighting GSP. Diaz doesn't want the fight and is trying to play it off as some anti establishment bullshit to save face.
"If you get hit and it hurts hit him back you not knocked out yet."-Joe Doerksen
The Toxic Terrors (FFL)
Demetrious Johnson*Eduardo Dantas*Emanuel Newton*Will Brooks*Michael Page