It's pretty clear? Clear to who?

Search all the sources - there were only 14 confirm out of the 828 civilians + 367 soldiers.

There were many people being shot in their homes in the first hour, a long time before IDF managed to reach those areas by foot. As of air, there were not enough attack helicopters to cover all that area, and there were no clear commands of where and how much to attack, that pilots mostly did not attack at all.