I would think that checkpoints are stressful for everyone and it's difficult not to make mistakes. No mental room for surprises.
I'm not trying to speculate. I wasn't there.
https://m.facebook.com/NeverAgainUK/posts/2319854504976691
https://www.cnn.com/2020/06/26/middleeast/mideast-israel-palestinian-shooting-intl/index.html
