The big danger of WSL is in drivers. For many hardware vendors, driver development is a cost center. It they could just get away with writing a single Windows Driver and then rely on a Microsoft supplied WSL universal driver which just does pass through to the Windows driver, it would cut down on their development cost. With GPU pass through, Microsoft already has this type of model, where the graphics driver on the Linux side of WSL is just a thin shim that calls to the Windows GPU driver. In the future, I could see NVidia, making all their consumer GPU drivers like this, and reserving native Linux drivers for their professional GPUs, which would help them segment the market better.