Ok, did you tried to contact the user who mapped this originally?
Why delete instead of fixing? 
For example, looks like many of buildings are actually roofs on columns, so instead of deleting them you could just fix the tagging with building:part=column, no? (https://wiki.openstreetmap.org/wiki/Tag:building:part%3Dcolumn)

BTW, this place's official website actually uses OSM map for presenting 3D model of the site, I guess original author explicitly mapped this for their site.
see yourself at the very bottom of this page: https://www.kfarhanokdim.co.il/