That image should be tagged with {{consent|published}}, which states the following:So images like this one would have to be deleted:
" This media was copied from the source indicated, which adheres to professional editorial standards, allowing the status of consent to be reasonably inferred."
Thus there is no reason it should be deleted. There are several such options available with the consent template.
This certainly seems like an improvement to me (in terms of due diligence and providing the reader with useful information) -- but how does it address the image's compatibility with the board resolution? It remains true that all 5 people were in a private setting, and did not (to our knowledge) express their consent to be published on Wikimedia Commons. (Or perhaps mere "consent to be published" is what the board meant - ?)