I find they are very concerned about ever pulling the trigger on a change or deleting something. They add features and codepaths that weren't asked for, and then resist removing them because that would break backwards compatibility.

In lieu of understanding the whole architecture, they assume that there was intent behind the current choices... which is a good assumption on their training data where a human wrote it, and a terrible assumption when it's code that they themselves just spit out and forgot was their own idea.