There's a general false assumption at the very beginning of this article that users own the code they upload to Github (I can freely & legally upload some code

There's a general false assumption at the very beginning of this article that users own the code they upload to Github (I can freely & legally upload some code I forked from a FOSS project elsewhere). Pretty concerning that this fairly obvious oversight was missed by an IP lawyer consulted by a platform apparently dedicated to managing open-source code. Github's own ToS makes explicit & careful distinction between code you upload and code you own.