Sorry TT
I sincerely doubt that somebody would invest some few billions of dollars to start an operation and would take chances with just a few formalities.
If you knew the details and didn't took any action you're an accomplice and endorsed the whole thing.
You're missing the botton line. What's more dangerous: a fully current, extremely experienced and professional crew that operated a flight without a stamped sheet of paper or some incompetent, inept, downright criminal crew who endanger hundreds of lifes whithout nothing happening to them?