I fear that Stadia could bring change to gaming as publishers might decide that streaming is the way to go against piracy, technical difficulties of users and distribution costs. Maybe it would allow them to externalize support to Google even. Another step to take software away from the user.
It would restrict things like modding and user modifications of games, which I value rather highly. The fear that I suddenly loose access to software is also present since I certainly am one of these backwards hoarders. I saw people loosing some of their digital media when GFWL shut down.
Still, in context of this page I believe that there is life in the old dog yet, even if the dog isn't old at all.