My bet is they won't find any bodies. Those are long since crab-bait. Crabs, eels and some other interesting animals. Even if it was 6000 feet, there'd still be crabs, they'd just be a little meaner looking than the ones you're used to in shallower water. Then again, it is a unique location, so who can say? Maybe they will.
Actually, Archman isn't being nitpicky at all. He just happens to know what he's talking about. You really have to question the wisdom of using an air-filled PVC can at that depth. (Especially one that isn't brand new and has had it's share of exposure to sunlight.)
You couldn't hire a company to send scuba divers down there...you'd get an ROV, a hardsuit, a submersible or a surface-supplied rig. The fact is they're scuba divers having an adventure and doing some clowning for T.V. I don't mean that to be insulting in any way, that's just the truth of the matter. A professional dive operator would take a very different, and much safer approach. But he would have literally millions of hours of combined underwater experience backing him, and would have the singular goal of getting the job done in a safe and hopefully effecient manner.
That said, ever since I first heard of the blue hole, I've been wanting to see some video of the bottom.
Edit: >>Oops...12-26-2005? Apparently I don't read too well...
...anyone know if it's aired yet?