Stop kvetching and read the submission title.

Yeah but you can distill

Isn't that a bit like saying that if I open source a tool, but not a full compendium of all the code that I had read, which led me to develop it, then it's not really open source?

True. But the headline says open weights.

It's just open weights, the source has no place in this expression

you are absolutely right. I'd rather use true closed models, not fake open source ones from China.