Valve is not selling a walled garden product and if you are expecting them to administer the steam deck like one you will be disappointed. If that's not for you then you should not go into business with Valve - it would be painful for both parties.
Despite the video being retracted the desired effect has been achieved. The flurry of news has more lay people thinking about the Steam Deck in the same class as the Switch, even if their intent is not to emulate.