the document is not an essay explaining how the fear of an overwhelming number of incompatible forks of a project is not upheld by reality.
it is about the legal fear of forks. as in incompatible licensing and cetera. there's a reason it's under a subdirectory literally titled « Licensing and Law ».
the document does not address the psychological overwhelming of many forks to choose from, which is only a counterargument addressing your argument that many modifications to choose from is overwhelming.