This is misleading. Very little on the internet is actually free. Right now (and back then) there is tons of content that is either paywalled or supported by advertising.
I think by-in-large most people consume less "usage" than what they pay for with subscriptions, etc., and generate much more revenue via advertising for the sites they visit than the cost of the bandwidth they are consuming. Imagine if instead of being bombarded with ads or subscription CTAs, you are simply charged $0.00001 for your visit to [insert cool blog here], or $0.0001 per second of video you watch on [awesome youtube equivalent here]. That is the dream.