As I've been told by someone I hold in high regard..."Don't discourage others when they are acting in regards to their own safety." That said, if it makes you feel better to have a Nautilus for this type of diving, I applaud your proactiveness. It can't hurt. The truth is the Jupiter dive ops do thousands of these dives every year and very, very, very (I'll not add more, but you get my point) few go missing.
Requiring OTHER divers to buy a Nautilus in order to drift dive off Jupiter?? Oh puleeze...someone needs to get off the internet and go diving...geez.