Truly.The benefits of an open-platform everyone. And that of a company that understands how important that is, even when that means adding support for a product that competes directly against theirs.
And the thing is, they can retroactively add functionality to both hardware and tons of software you already own, without you having to pay anything, and even without developers having to do or patch anything.
It has happened before (e.g. Streaming, Steam controller, hell DSR is another example not from Valve really), and it will happen again.
It's wonderful.