Sadly all very large planes are inherently unsafe.
So are trains and cars (not to mention small planes, which are, mile for mile flown, much more dangerous than big planes). Everything has points of failure and is therefore unsafe in some way; the question can only be "how unsafe?"
It's not a law. It's not the government restricting what you can do in a virtual environment, and even if it were a law, that would be a First, not Second, Amendment issue. This is no different from a store having a policy of not selling guns. Or more precisely, of a flea market setting a policy that its vendors cannot sell guns (or candy or wooden nickels or whatever else they want). What would the alternative be? Should Microsoft be forced to sell guns on Xbox Live? That would be a clear First Amendment violation.
The only thing worse than X Windows: (X Windows) - X