No, "wet" wings also refers to the plumbing for DTs. He also mentions:
"As such it was fitted with "wet" point wings, i.e. they had fuel lines and systems so drop tanks could be carried on the outer wings. Quite often, in operational situations, you will not see these wing racks, but only the centerline ETC rack carrying a bomb. This was because the long-range capability was frequently not needed, so the equipment was removed to save weight and drag."
He's clearly talking about DTs on the wing mounts (about where the F-8 has bomb racks)