Hubble Too Sharp? Quantum Theory Flaws?

sckienle writes "Space.com has an article suggesting that the Hubble space telescope's pictures are too sharp. At least they are based on current interpretations of quantum theory. When viewing distant objects, 'the expected quantum effect is like a subtle version of the blurring caused by Earth's atmosphere, which makes stars twinkle.' But those effects do not seem to be present. The research will be published April 10 in the journal Astrophysical Research-Letters."