If that's true, it may bode well for the future. The AI boom creates some strong incentives for Nvidia to develop an intentional strategy for software generally and FOSS specifically, and there's a chance that could influence the rest of the company in a very positive direction. Hopefully, what they learn by working with HF and having the value of their hardware products increasingly determined by their ability to run FOSS software stacks will backwash into the rest of the company, or at least make them much more aware of the problem at all levels.

I do think that they still might be a bit reticent to release fully open-source drivers, though, only because of the extent to which hardware design could be inferred from the driver source. OTOH, AI itself is making disassembling and reverse engineering binary code easier and easier, so there might not be much of a point to withholding the source in the near future.