Well, for one thing, everyone learns to dive on stab jackets. Therefore, stabs are obviously the best source of buoyancy in their minds.
And then there’s my personal favourite argument: "Wing BCs are dangerous, because they float unconscious divers face down!"
This is the biggest argument people present against wings. It’s also the biggest pile of nonsense you could imagine.
Not only does it not matter if your BC doesn’t keep you head-up, it’s untrue that wings push you face down.
People often take the simple view:
You have a diver, who is heavy. You have a wing, which is buoyant.
Diver is at the front, wing is at the back. The diver will obviously be pushed face down.
This is an overly-simplified view.
Firstly, let’s remember that scuba divers wear cylinders. Heavy cylinders that are mounted behind the wing.
Immediately, the front-heavy view is erased. The true depiction is of a heavy diver with heavy cylinders, with a buoyant wing in the middle. Much better balanced.