HI, For some historical context, it used to be that the board / Incubator asked projects to have a set of bylaws when they graduated. This fell out of favour more than ten years ago, and projects were expected to follow documented policy. Before this, things were not as well documented, so we asked for bylines. Once we had better documentation it was seen that bylaws were a duplicate of existing policy and no longer required. There was, however, some confusion around policy, so those short Incubator guidelines were adopted. Also, remember that most of our policies are, in fact, guidelines and document one way or what has been found to work well. That doesn't mean it’s the best fit for a particular project, and if you want to do something different for a good reason that still fits in with how ASF projects are governed, you can.
Kind Regards, Justin