The thing I don't understand about SNL is... think back on the long history of SNL and remember your favorite, all-time, classic sketches. Were any of them a television parody? Were there a bunch of celebrity impersonations?
There are a few exceptions (Sean Connery on Jeopardy), but in general the best sketches are just fucking sketches.
The show has a great cast and great writers, I think they must just have weird priorities. Or maybe they're under pressure from NBC to write a bunch of pop culture garbage. At least they're finding ways to cram celebrity impersonations into weirder premises (Mark Wahlberg Talks to Animals, Lawrence Welk show).
An aside: speaking of the Lawrence Welk show sketch, did anyone else notice Wiig's baby hands thing was lifted from Jon Glaser's "Tiny Hands" online shorts? I hope Glaser got a paycheck for that bit.