The specification uses wrong references to existing sections, as in:

AV1 video encapsulated as defined in clause 4.2

Should it be 3.2?

A PES shall encapsulate one, and only one, AV1 access unit as defined in clause 4.3.

It should be clause 3.3

The removal of start-code and emulation prevention as defined in section 4.2

Should be 3.2

In general, editing should use the Respec way of referencing other sections. See https://respec.org/docs/#sections and the use of [[[#some-id]]]