They can't attract a large contingent of users. Because despite being able to do everything the big name models can do, they cannot do it as well.

This aligns with the benchmarks as well; they benchmark great for what they are, but still bottom of the barrel when competing for "state of the art."

And yes, it's great you daily Chinese models, but the vast majority of people try them, say "impressive", then go back to the most performant models.