I agreeIf you put a long straight-edge on the interior block wall, is it still flat ?
Anything noticeable on main floor such as cracks in drywall or doors askew and not closing properly ?
Your wall is not waterproof, but since it seems to be totally above grade, that not a huge concern.
If no other evidence of issues, I think I would just take some photos and measurement of the interior cracks and monitor if they are getting bigger.
Re-parge outside if you are concerned about the looks.
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