Remember the first hospital Israel bombed and then claimed it wasn't them? Since that didn't result in any consequences, now Israel bombs hospitals nearly every day. Same story with the flour massacre.
The reason we all rushed to point fingers at them for that one is... they'd done it before.
https://www.wsj.com/world/middle-east/israel-tries-to-back-u...
Not to mention the BBC started with "500 dead" title that was literally Hamas propoganda.