With all the red flags I've seen in the 4 days of them looking for it, I cannot understand how anyone spending that kind of money on this didn't see enough to back the fuck off.
The controller was probably the least problematic aspect of the whole thing, and that’s saying something given that they were relying on fucking Bluetooth at the bottom of the ocean.
It does seem like Oceangate advertised in a misleading way, emphasizing claims of safety and compliance with safety standards. There's also probably an unfortunate bias, of sorts, of "rich and powerful man saying something is safe in a confident and authoritative voice so it must be true"