Reading between the lines they are likely lowering their testing and QA needs. Likely just focusing on an AMD ecosystem. Not the end of the world, the community can fill in the blanks :)

SteamOS will be coming to [other devices] before you can install it on your [other device] ‘because right now, it’s very, very tuned for [one specific device]’

weird title

Dear Valve. This is extremely disappointing.

How about focusing on selling and developing games?