Parasexual. Neat word. I wouldn't call h/c a sexual turn-on for me necessarily, but I do sometimes get emotional reaction that spills over into physical. Your description of your reaction to it rings true for me.

I think your reviewer thinks he's so smart for pointing this out -- duh, all your h/c fan readers have known on a more complex level for some time -- but point him at Niven or Heinlein and he'd probably be blissfully, wankingly ignorant of their para/sexual quirks.