Is there any part or element of The Wingfeather Saga that you legitimately wish was not in the series? I don't mean parts that were super sad or anything, but parts that are literally bad.
I have a couple grievances. One is the occasional potty humor (mostly in the first couple books). The other one is close to the beginning of The Warden and the Wolf King where Janner turns 13 and his "friends" force feed him 13 muffins after he ate a very full meal. That was disgusting, kind of immoral, and made even worse from Peterson trying to present it as something funny. Why were the other characters enjoying that? I have no idea.
What are yours?
I agree about the vulgar humor, and I don't care for Cara Sobbler, but I don't have many other issues with it, beyond they included "diversity is dignity" as one of their core values.