Important issue, mediocre article. The problem is that the big AI companies are trying to advertise something as open source that isn't. There's also the issue that "weights" may not be copyrightable at all in the US, because they are not a work of human authorship.
There's a better way to do this. Epic licenses Unreal Engine in a simple way. You sign up and you can download it. That's free. Until you have a game that makes at least a million dollars, it's free to use. Then they want 5% of revenue. If you're successful enough to reach that threshold, they'll find you. The game industry has good sales visibility.