It is a good argument. It sounds reasonable. But having 'reasonable rules' is a vague statement. It is something akin to me saying in a corporate meeting 'it is all about balance'.It is and it conveniently can be applied to anything.

For the record, I personally dislike German approach despite understanding its genesis.

I can't really speak for aerospace rules, but I am not certain they say that much about speech.

edit. I just remembered. Internet has all manner of rather dangerous information out there. Materials may be highly difficult to procure, but knowledge is still at your fingertips.