Any objections of simply reverting such changes?

https://www.openstreetmap.org/changeset/72169906

Whatever their good intention is. It does not belong in OSM. It is certainly no place to publicly document malaria cases. This is IMHO a clear violation of people’s privacy.

On top of that: Their mapping ob anything what looks like a building does uesually not even remotely follow the outlines of the buildings in current imagery.