I always interpreted cathedral vs bazaar as being about the architecture of large things. Do you build to a master plan? Or does everyone do whatever they want? (Within some kind of framework, of course.) Like the cathedral of the Java SDKs vs the flea market of NPM.

This author seems to have some kind of attitude about organization in general—anything with people and process, that happens to exist around some project, that might require at least a small commitment to be a part of. Like complaining that a flea market has a form to sign.

The ability for people to functionally collaborate, with some kind of structure, is the key thing that enables building large things together.