The “developed or supplied outside the course of a commercial activity” condition is part of why people are up in arms about this. If I’m at work and I run into a bug and submit a patch, my patch was developed in the course of a commercial activity, and thus the project as a whole was partially developed in the course of a commercial activity.
How many major open-source projects have zero contributions from companies?
It also acts as a huge disincentive for companies to open their code at all. If I package up a useful library I wrote at work, and I release it, and some other person downloads it and exposes a vulnerability that is only exploitable if you use the library in a way that I wasn’t originally using it, boom, my company is penalized. My company’s lawyers would be insane to let me release any code given that risk.
The paper (linked from the article) has a photo of the actual tablet in question, which was apparently discovered circa 1900.