Well yeah, but walled gardens are there, right? On mobile phones which appeared after google and facebook. No one cared that their rights got taken away, they just want new shiny toy. VR has all the 'wow' effect to be that toy.
Never will buy any of facebook's shit but I damn well did invest in their stock cuz it's evident that no one sees the problem with selling their souls away be it in the browser or in virtual reality (where there's even more opportunity to influence you).