There's really only one reason, but perhaps it bears repeating: it didn't work as intended because it was scripted (and badly). Her delivery is flat, her laugh lines aren't self-deprecating and it sounds like the sort of partisan in-joke that only the really committed would find funny (and only then because it's repeating something they all think is "true").
This Humor Wasn't Humanizing
This Humor Wasn't Humanizing
This Humor Wasn't Humanizing
There's really only one reason, but perhaps it bears repeating: it didn't work as intended because it was scripted (and badly). Her delivery is flat, her laugh lines aren't self-deprecating and it sounds like the sort of partisan in-joke that only the really committed would find funny (and only then because it's repeating something they all think is "true").