I've known for a while now that the White House press corps is rather unhappy with the level of access the Obama administration gives them. Politico's story is hardly the first one on the subject, as the reporters have been visibly grumpy since around 2011. There's an important lesson about incentives here if you read carefully. Note this sentence:
The president has shut down interviews with many of the White House reporters who know the most and ask the toughest questions. Instead, he spends way more time talking directly to voters via friendly shows and media personalities. Why bother with The New York Times beat reporter when Obama can go on “The View”?