Science and philosophy

In a blog post last month, John Wilkins expressed concern about what some scientists say about philosophy:

What gets my gander is that Perakh, or more recently Lawrence Krauss, Hawking and Molodinow, and a steady stream of physicists, seem to think that while their own discipline is noble, authoritative and has extensive conceptual ramifications (that we should really call philosophical), my discipline is just “entertainment value”. In a rejoinder to me and others just posted, Perakh tries hard to back down from this, but it’s pretty clear that he, and his entire field, has a set against philosophy. Why is this?