Yeah, DiFi is running for guv probably and probably wants to separate herself from the rest of the (stereotypically Cali liberal) pack in the primary. At least that's what Nate Silver thinks this means.
Also, these are Democrats- of course they're gonna press for big, sweeping legislation like EFCA when they know it has no chance of being signed into law, but will waffle and prevaricate when they could actually, you know, DO it.