This is an interesting choice to make. There is an option to risk incorrectly applying some corner case of well formed patches, and a risk of incorrectly applying malformed ones that are working silently today.

I can see wanting to avoid the former. The latter also seems bad though. Rarely is it ever made so clear that fixing bugs in a popular tool also leads to compatibility issues. People often cite that concern to avoid fixing bugs, but this is a legit case of that dichotomy.