Playing devil’s advocate here: maybe they were trying to be inclusive by not specifiying gender but haven’t heard of they. The US education system is a joke in a lot of places so the (hypothetical) teacher may have to think twice before suggesting they change the it’s to their. But hey, at least the apostrophe is where it should be and I’d take that as a win for education.
The only way I can see them weaseling out of this is by keeping the program running the model made in-house and proprietary while releasing the model in a format unusable without the base (proprietary) program. But maybe the GPL forbids such obfuscstion efforts (I don’t know, I haven’t studied it in detail)