To understand the difference between a project team and a community of practice, it helps to think about the task. Do you organise to do the task, or organise around the task? If the task has value, you stay on the task and practice. If not, you move on.
Of course, formal coach education to this point places the value on completion, not practice. “Job and knock” will get your bathroom or kitchen done, a life time of learning, not so much.
Finally, a word on re-accreditation: even though my gas boiler gets a service every year, I still don’t know how it works.