They can report only one side over and over again and focus on the emotional impact, include “people say” or qualify rumors or speculations or exaggerations so that it’s still factual reporting, while completely ignore the other side. That is what you see Israel and US MSM doing. Humans have biases and can easily be manipulated.
I suspect that Al Jazeera is still mostly on it’s “best behavior” trying to establish itself but ultimately it’s controlled by Quatar and not free. That still makes it incredibly valuable because it’s not controlled by US empire.