Thanks; never heard of him before. according to that wikipedia link, Scruton says:
"No proof is clearly stated or examined, and the jargon of set theory is waved like a magician's wand, to give authority to bursts of all but unintelligible metaphysics."
That seems to be exactly what Sokal was parodying.
I have very little time for what the French have been referring to as "philosophy" since roughly 1970. It's a sort of overproof bollocks.