A couple of possibilities come to mind.
Maybe she stood in front of the bulldozer believing that when
the driver saw her, he’s stop. That would imply that she believed the Israelis
are moral and reasonable, and directly gives lie to much of what’s been said
about them in defending her actions.
Maybe she thought the driver would not stop, meaning she deliberately
let herself get killed, to be used as a propaganda tool. This would sort of imply some serious psych issues.
Maybe she was so stupid / ignorant of heavy equipment that
she didn’t realize that the driver might not see her, and not stop because he
was in a military zone that civilians had been excluded from and had no reason
to believe that some idiot might be standing in front of him.
In no case do I see any reason to support her actions,
change my beliefs, or care about her and “her cause” in any way, because it’s
nothing more than a personal tragedy for her family (who failed to educate her
properly), and a propaganda tool for people who want to re-create the holocaust
and tear down the best parts of Western civilization.
There will always be useful idiots. That doesn’t mean we have
to give them a platform.