I completely agree with your last point. They shouldn't have ownership of "Open" in relation to "AI" broadly speaking, but their company name "OpenAI" should be

I completely agree with your last point. They shouldn't have ownership of "Open" in relation to "AI" broadly speaking, but their company name "OpenAI" should be protected. Entirely possible, seeming more likely, that I didn't have enough background information on the short article.