That’s the ‘source’ for what the model spits out though, if not the source for what spits out the model.

It is just freeware, not open source.

The "source" for something is all the stuff that makes you able to build and change that something. The source for a model is all the stuff that makes you able to train and change the model.

Just because the model produces stuff doesn't mean that's the model's source, just like the binary for a compiler isn't the compiler's source.