I do feel a bit sorry for her. Never been pregnant myself, I can only imagine the pressure women put on themselves to return to their pre-baby weight, coupled with raising a new baby, having a career and in her case planning a wedding (I'm assuming here).
WW does add to that stress, because she's under contract. I do think that they gave her a short amount of time to loose the weight, not 1 year. Because in Hollywood, they probably want to see her back to her Daisy Duke/Newlywed weight, they want instant - like in a couple of months. Not 'oh look how it took Jessica 1 year to get her body back'. That's not the way they work. Sad, but true.
We all have seen the covers praising moms getting back in shape in weeks, like Heidi Klum for VS fashion show. Granted she was already skinny to begin with, but that's what sells magazines.