No, you misunderstand. I don't dislike Y'shtola. I disliked how she was written in the EW patches forward. She used to be much more interesting. We actually saw her being intelligent and curious many times before...but that was never shown again since the main writer change. If things stay as they are, I can bet that we're going to give her the Mcguffin at the end of a patch and the next one she will show up with the answers already.
Wuk Lamat saying he is smart is NOT the problem. The problem is that the story doesn't give me a reason to BELIEVE her. I don't want characters telling me what I need to think about a character, I want to see their actions and reach that conclusion myself. They can talk about them being smart, sure. But if I don't see them being smart, it is bad writing, it is forced, and not believable. It tells me that the writer doesn't know how to make it true.
I understand that yes, this IS what they were GOING FOR. But can you truly say the execution was good? This is a problem all over Dawntrail. There's a lot of interesting themes and messages they were trying to convey, but the execution was clunky, and I'm not going to say it's good because I can see what they were TRYING to do. We used to have actual good writing, and that's important. It's not like people can't understand that's the message and why he wanted to protect the hetsarro. It's how he is doing it, which is not very well done, not in character, and bad shonen-esque.
And again, what he is actually saying in that scene isn't the problem, it's his actions. I play with JP audio, and he does say during that part that he will save them even if it costs him his life, wich is overly dramatic and unnecessarily reckless even for him. Specially because we are also supposed to believe he's been working as the Vow of Reason for a while, meaning he should know the importance of being alive and how he's got better ways to help than that.
I don't buy it. If it was supposed to be a point of growth of his recklessness, then the writing should be pointing out towards that, not immediately having someone congratulate him for risking his life for the rroneek and moving on.
I understand why someone said it looked like a Wuk Lamat moment, because it would be in character for her to do that, because she did a lot of reckless stuff like that throught 7.0...but I don't think she was replaced by Koana, I just think they didn't think it through before writing this scene, since it is supposed to be Koana's "I now accept and want to protect the culture I come from!" kinda thing. But it still feels out of character and juvenile.