@nichtich I would like to just be a bit hard on this. If you help me by telling me one by one how each file is broken, I will go and fix the mapping sets everywhere (even those belonging to other teams; I don't know why sssom validation is ignoring mapping_set_id validation; this needs to be fixed!

Ok. I've added a sssom-js parsing option to ignore some errors, including missing mapping_set_id and license, but this should be errors still.