After two years and multiple brochures (as well as accessories) all discussed in the thread it was just confusing..
I tend to trust the original parts manuals first and then brochures second.
The rear crash bar is shown as an option in the 71 parts manual with the different bumper over rider called out to go along with it. It is also called out in my 72/73 parts manual. Interestingly I just learned something new today that I didn't before. For 73, the parts manual lists the chrome over rider for the crash bar for the T's and E's but, not the S or the RS. For the S and RS, the manual calls out the BLACK over rider with the crash bar. I don't think I've ever seen a picture of that configuration.
Considering the '73 USA requirement that spawned the big clunky rubber over riders, I doubt that the rear crash bar would have been available for the USA market in '73, thought the manual doesn't state it. Does call out the rubber over riders as USA specific.
Also in my 71 manual, the rear fog light is listed for markets EXCEPT USA, Italy, Switzerland, Sweden, Finland.
So, I think it is safe to say that a brochure intended for a particular Country (market) would not list options that couldn't be delivered to that region.