Why is manage_pasteObjects protected with "Modify portal content"?

The subject-line is self-explanatory:

https://github.com/plone/Products.CMFPlone/blob/master/Products/CMFPlone/Portal.py#L46

https://github.com/plone/Products.Archetypes/blob/master/Products/Archetypes/BaseFolder.py#L42

https://github.com/plone/plone.dexterity/blob/master/plone/dexterity/content.py#L580

Ideally, this really should be 'Add portal content' -- so that folks
who have permission to view the content in source, and add content to
target can paste?

Working around this requires jumping through hoops (for example, I
have a workflow definition that only allows those with the manager
role to Modify an item in a "Published" state, which forces me to
workaround by creating a distinct workflow definition for my folder
just to route around the wrong, but long-standing conventional
permission).

Is this a simple long-standing mistake that could eventually be
corrected?  Am I missing something?  If not, should I PLIP changing
this for Plone 5?

Sean

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