From the first section of the consumer.org.nz page (emphasis mine): "Can I make a copy of albums I own?
Yes. A recent amendment to the Copyright Act means that you can copy music – in the Act as 'sound recordings' – you own for your own personal use.". No such amendment would be needed if copyright was about sharing. Same with the temporary copies in RAM.
The license talks about "reproducing", which is copying.
You seem to be basically saying that you think Meta's lawyers and Creative Commons's lawyers don't know how to do their jobs (and can be trivially out-thought in a couple of minutes by laypeople), which seems very unlikely.
I don't know why you're so insistent on asking a non-lawyer for legal advice. The license says "NonCommercial means not primarily intended for or directed towards commercial advantage or monetary compensation", so it depends on your reasons for reading the code (and it doesn't matter whether you do it at work or elsewhere).
The part you quoted is from the definition of "NonCommercial". The way "NonCommercial" is then used is:
the Licensor hereby grants You ... to ...
a. reproduce and Share the Licensed Material,
in whole or in part, for NonCommercial purposes
b. produce, reproduce, and Share Adapted Material
for NonCommercial purposes
As you can see, it always talks about sharing the content which can only be done for NonCommercial reasons. If it wouldn't only apply to sharing but to any type of usage, why would sharing be mentioned in every paragraph?
Also, in my experience, a lawyer would use "or Share" and not "and Share" if they wanted to express that the act of "reproducing" alone (whatever that means) is enough to fall under the license, even if no sharing would occur.
So my feeling is still that the license deals with sharing. Not with act of using.
The license talks about "reproducing", which is copying.
You seem to be basically saying that you think Meta's lawyers and Creative Commons's lawyers don't know how to do their jobs (and can be trivially out-thought in a couple of minutes by laypeople), which seems very unlikely.