I have put a patch and comments on MDL-52253. This is only to get a default useful scale for rating competencies (which require values to either be "proficient" or "not proficient"). The default separate and connected ways of knowing does not imply that any of the values are preferred over other ones - so can't really be used for rating the proficiency of a competency.
I think that a range of useful default scales would still be very helpful - and would encourage more careful thinking about the scales used for assessment. I just don't think there is enough before 3.1 is released to do more than the minimum required to provide a useful scale for competencies.
(Archived forum) Moodle research
Default scale of Separate and Connected ways of knowing
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