This is a little unfair. That is kind of like saying that in order to play any game as intended you need a system that can run at maximum settings with a 4K monitor that has the most accurate colour.
The game can be played on VR that costs much less than that and the experience will be similar to only being able to play a flat screen game at medium settings at 1080p. We don’t know, but not having the Valve controllers might give you quite a different experience, but I don’t see them making it a significantly lesser experience without them.
As someone that does own s VR system (the Vive) and a Half Life fan, I’m definitely excited about this news. I can understand disappointment from those that won’t be able to play it, but it is great to see a company going for broke with VR. Valve are in a position where they are happy to make something that only a minority can play and may not even directly turn a profit, as they can win out in the long run. With their involvement in the hardware side as well as the store side, there interest is in improving the visibility of VR and also showing other developers how these games should be made. They can afford to throw money and time at this to get it right, where others may not.
As for the politics in the game, it is set in a world that is massively inspired by 1984, about a extraterrestrial colonial force that is bleeding the world’s natural resources dry… Good luck with it not being open to political interpretation.