The only thing I "liked" about SNL last night was her various different looks. She could pull off the punky emo type, the English drama period piece type, and whatever you'd call the radio skit look.
Those who host SNL meet with writers for a week in NY, brainstorming skit ideas. It's never 100% the writers' faults, although they're definitely part of the issue every time. It's also the celeb's fault. They have a lot of say in the types of skits that are done. For reference, go watch Natalie Portman's SNL episode to see how each skit was curtailed in a way to her interests/life.