Because the spread of a network made and paid for by advertisers will hinder the spread of the network most of us have now, which is mostly paid for by the user

Because the spread of a network made and paid for by advertisers will hinder the spread of the network most of us have now, which is mostly paid for by the users. Internet.org is not mis-named, it's an intentional hijacking of the "internet" brand to refer to a different network with different people and institutions in control.