BPMN11 — question raised by Issue 9321 nor addresses by issue 9319

Issue 9321 was resolved as being addressed by Issue 9319. However, the resolution of Issue 9319 did not adequate address the question raised by Issue 9321. Thus, this question still needs to be addressed. The Issue is:
The start of section 8 has the following which suggests 2 levels of compliance; however this opportunity has been missed in the conformance section: "First, there is the list of core elements that will support the requirement of a simple notation. These are the elements that define the basic look-and-feel of BPMN. Most business processes will be modeled adequately with these elements. Second, there is the entire list of elements, including the core elements, which will help support requirement of a powerful notation to handle more advanced modeling situations."

see above