I hardly understand the headline. Steam machine is just a computer, and since it can be used for other stuff than playing games, then it can't have the cheap pricing of a console. Most consoles are sold at a loss, and the benefits are made when selling console-exclusive games. If you sell something at a loss, but users aren't forced to buy your games, then you're not gonna make any money. Hence, the Steam Machine (AKA GabeCube) is gonna be as expensive as a laptop (or slightly less expensive because of the bigger form factor and lack of portability).
On top of that, the base OS can't run a ton of games that run on console, because it runs in the way of kernel anti cheats (think: battlefield, call of duty, valorant, league of legends... the biggest games basically), while consoles are guaranteed to run most AAA games.
So with all that in mind - while I appreciate what Valve is doing a lot - I don't think it'll win the "console generation". I hardly see how it can even be called a console. It's just a PC, and that's how they call it themselves.