Obama hasn't set any fracking standards. He really doesn't have much authority because that belongs to the state agencies. He has complained that there a couple of states that haven't upgraded their standards so he could set stds on federal lands in those states. What he has proposed is not much different from what Texas is doing.
In other words, they haven't been able to find the hook that would justify Federal intervention, despite looking very hard for one (at taxpayer expense, ntaurally). The media have been carrying the ball, esp the film types, because the administration can't get anywhere with science.