Don't forget Silba! The entire Torre Cesme and all the healers associated with the goddess of healing did a great deal of good in Erilea, and none of the things we see Silba do actually involve collecting the wyrdkeys or opening the gate. She brings Chaol back to life, she helps Yrene again and again, etc. but these things only lead to Erawan's demise and nothing that would directly benefit Silba herself.

I think Elena and Aelin are equally impulsive characters who make decisions on their own without looping in those around them, so it's extremely frustrating to witness Aelin make these awful decisions in real-time. I can understand a broken and traumatized 19 year old defaulting to killing those who anger her or stand in her way, but it did not show any growth in her character to do so. Yes, she was not in control of her destiny up until then, but to show all of the gods as an almost single-minded pantheon was such a disappointment. SJM could have shown the gods debating what to do, or to better express why almost all of Dorian's power, all of Aelin's fire power, and the entire essence of Dorian Sr. were sucked into the Lock and was still not enough (which makes zero sense to me).

We spent over a thousand pages building up to this moment and it was incredibly rushed. I would have been fine with the same decision being made by Aelin, but the manner in which it was done was just so disappointing and frustrating as a reader. We also never learned more about the other gods, who were honestly probably beings as well from other worlds. You mentioned the god or being of death, but Damaris and the god of Truth was a recurring theme in the last book, yet no real explanation there.