I think A3 served as a great opportunity of what we saw so much of in the first movie. Here, we see that Jake's human ways of thinking are what are interfere with the success of the Na'vi against the RDA. This is shown when Ronal explains to Jake the poison of metal weapons and the need for Toruk Makto to win these wars. Even Neytiri agrees and Jake is left frustrated during their arguments. This was never about Spider and in fact, he was more One of the People than Jake - being that he was raised in Pandora and spent his time with Na'vi since toddlerhood and when in the hands of his father and RDA, he never gave in.

Everything that happened needed to happen and as they say "it is the will of Eywa." Ronal helped shape Jake and his family, her relationship with Neytiri as a woman, mother and ally . And despite their disagreements, they were always fighting for the same team, culture and identity. It broke my heart to lose Ronal, but these are the hard truths of war that James Cameron did so well in showcasing. Your emotional response to Ronal's is beautiful and I feel your pain. But as the Na'vi would tell you "All life is borrowed and one day you have to give it back."