okay, so I am going to repeat it again...
I am not disagreeing, but I think it just needs to be toned down and given nuance a bit.
OK well I guess what you are missing here is that people do not see a need to tone it down. She is evil. That is how she comes across. Do you tell the person who is about to gleefully slay your family because they think that is fun to tone it down?
OK, you might, but do you expect that to work? None of the companions are there to live up to your expectations. This is how Larian is presenting it. If you do not like how Lae'zel does things, what she wants you to do, and how she talks, leave her at camp. Take Gale. He will adore you for every nice thing you do.
Toning her down is a disservice to the players who want a bloodthirsty, edge-lordy companion.