Also, the conflict around "the area from the river to the sea" in it's entirety is something like 140 years old, with western countries having played a driving role since the very beginning. The Sudan conflict on its own has no such history. (The colonial history of Africa is a different story)

Generally, I think it's reasonable to pay more attention to conflicts where the own side is in the wrong. I don't need to demonstrate or raise awareness if my government is already acting like I'd want it to.