This particular propaganda war has been going on for decades. The credibility of both sides is poor. The credibility of Hamas is especially bad, which just means that their supporters are already primed to uncritically accept even clear falsehoods.
There's little downside to them for faking evidence. It just reinforces the status quo.
And it drives me crazy because it’s so short sighted. I’ve had this argument with friends and they adamantly don’t care because “the other side lies.”
The idea of taking the high ground and being right seems to have gone away to “win at any cost.” But I think that when you do dumb stuff like falsify data, it makes you untrustworthy forever.
Deception is a common trait among many species.