It seems like most of their advertising model is built on restricting others' access to YOU (force others who would normally show up on your feed to pay for pro

It seems like most of their advertising model is built on restricting others' access to YOU (force others who would normally show up on your feed to pay for promoted-posts if they really wanna show up). So, though an unfiltered feed might be great for the users, it seems like facebook would be generally opposed to it.