Where the heck is the "self-insert / self-insertion" argument coming from? This is a Japanese company and Wuk Lamat is a classic shonen protagonist, this has nothing to do with "self-insertion".
The problem of Wuk Lamat is that she is a stereotype (aka shonen protagonist) by definition divisive, that she don't truely grow during her story since she is already near perfect from the beginning and that the WoL has no real added value to her story, making them irrevelant in the overall story.

You aren't in a Marvel or DC comics where on the of author decided to insert a character in the story that look like them. So please, from every of my post here I'm clearly not a "Wuk Lamat" defenders, but try using your brain and your literacy if you have some instead of regurgitate sh*tty arguments you have seen in grifters videos or forums that are being repeated ad nauseam.