I think Ezra Klein nails this completely. The Washington DC press corps is not becoming better with time. It is becoming worse.
So I am going to make you read Ezra:
...ostensibly... lighthearted laughs. But it's evolved into a recital of brutal truths — albeit one neither side ever really admits happened. The joke of President Obama's performance on Saturday was that he wasn't joking. Everyone just had to pretend he was. Take this: