Very true, yet just look at the few dominant Tech companies Apple, Google (Youtube), Facebook (Instagram, Whatsapp), Amazon, etc. the amount of control and influence these companies have is staggering. If they want to promote or remove certain content, they can easily do so.
I think you're right, people are moving to more decentralized systems but the vast majority of us are still undoubtedly effected by the power of these media behemoths.