As "species complex" and "species group" are interchangeable terms except in cases of extreme pedantry, this species group can be considered a complex with the suffix "group" present in the list of common names. "Complex Species_name-group" is redundant and malformed on iNaturalist.
Identification
ID 2 of taxon E will be an unintended disagreement with ID 1 of taxon B after the taxon swap
If thinning a parent results in more than 10 unintended disagreements, you
should split the parent after swapping the child to replace existing IDs
of the parent (B) with IDs that don't disagree.