I feel like if their goal is to prioritize contributors over contributions, it'd also logically follow that they should try to have descriptions where possible? Just to make exploring any set of changes and learning easier? Looked it over briefly, no Markdown or similar doc changes there either.
I mean the changes can be amazing, it's just that adding some description of what they are in more detail, alongside the considerations during development, for new folks or anyone wanting to learn from good code would also be due diligence.