That could be a factor, but the optimistic interpretation would be that they want to support the open ecosystem because it sells more chips. Models are already

That could be a factor, but the optimistic interpretation would be that they want to support the open ecosystem because it sells more chips. Models are already largely hardware agnostic. It would be pretty hard to put that cat back in the bag. I could imagine them building value-added services on top of HF to advantage Nvidia products (i.e. "run this model on NVIDIA cloud" with one-click), but in this moment it's hard to imagine how they could actively disadvantage models built to run on other platforms.