Quite literally the government in China came out and said "It'd be better for us if we did more open models and collaborated with other countries also doing open models" and then Qwen changed their tune. It's literally thanks to China in this case, not competitors/peers in China. Their government is horrible for a lot of stuff, but in this case they do deserve praise for forcing the "right" (according to me) direction.
The obvious goal is to destabilize the western economy and prove that US tech is a worthless bubble - but I agree, OSS AI is great for everybody and what OpenAI was supposed to be
Our desire for better local models just happens to coincide with China's desire to destroy the western AI company business model by releasing local models. I doubt there's any philanthropy involved.