Isn't that Beastie Boy Mike over there on the left, with his film director wife on the right? (And, you know, some random dude there in the middle.) The other photo shows the happy couple in 2006. As of last summer, Mr. Diamond was sporting a jewfro.
Why were they there? Maybe they got sick of eating at the nearby Brass Monkey.
(Fun-ish side note! Looking at the Times's Audio Slideshow, it appears that Iron Chef sous master Anne Burrell was there too!)