I agree that you're being a bit pedantic, but it is a real loss to our language that these models are described as "open source." If you want to use an LLM then open-weight is fantastic. If you want to understand an LLM then it's useless: at the very least you need the pretraining data.

Open-weight is free beer without the freedom. But LLMs are evil by construction and using them makes people stupider, so I suppose "free beer [moderately cursed]" is appropriate.

I'm not skipping over anything because I didn't think to mention it my dude, gal and/or pal.