I have a feeling these guys won’t be messing around with a composite hull or maneuvering the craft with a video game joystick.
And the passenger compartment appears to be spherical, which is basically the perfect shape for external pressure (like an compression arch is for vertical loads), so the only weakness will be the compartment material itself or more likely any joints or and penetration points.
I’m still not volunteering to go.
As far as I’m concerned, just spend your money on better cameras so you can pretend you’re there instead of actually risking it.