I think that the what this really shows is that having a common language you can expect to work on all installs shortens the feedback loop for obtaining and using small programs by leaps and bounds.
Of course, having to type it in from a magazine is quite a barrier.
The "Load 80" icon in the upper-right corner of the first page indicates that the code was on the issue's counterpart cassette tape ... which could be purchased separately.
Of course, having to type it in from a magazine is quite a barrier.