Check out this example: https://www.bbc.com/news/articles/cjw4egp7lwno

"As we pass through Khan Shaykhun, we come across a street painted in the colours of the Iranian flag. It leads to a school building that was being used as an Iranian headquarters." "On the wall at the entrance of the toilets, slogans read: "Down with Israel" and "Down with the USA".

It was evident that these headquarters were also evacuated at short notice. We found documents classified as "highly sensitive"."

This is a BBC reporter reporting from Syria after the fall of Assad.

It is strategy for the IRGC and Hamas to operate from civilian infrastructure like schools to gain immunity. That's what's "not a human error".