Spin Doctors

So CNNMoney is reporting that the market is up due to hopeful expectations on a vote of confidence in Greece and, I qoute:

"a smaller-than-expected decline in existing home sales."

Okay, the decline was to 4.81 million units and the expectation was 4.8 million units. What really happened here is the number for May was revised downward so that the percentage decline from May to June was less than expected. Slap me in the face here! How is it good news that the decline was smaller because last month's number was wrong to the up-side? Isn't a revision down to last month's number bad news?