Hey Mo!
Well, I've heard similar info from Toonen as well (you're other good pal) that corals are built to feed. He made another point that most polyp extension is at night, and is recessed during the day. Doesn't it make more sense that if an animal were trying to maximize it's surface area for photosynthesis that it would extend under sunlight and not receed? Hmm...
-Rogue
