Those examples don't have citations.* I would like to see how magical categories actually appear in an argument in a philosophy article.

This is how I like to handle assimilating generalizations.. I will accept a generalization as true, but I tie it to an actual example. That way, if the generalization is later challenged I can look to see if the context/meaning/framing is different.

I am also curious as to whether there is any self awareness of this problem of magical categories in philosophy.

* I see now that your post did. However, I still haven't studied enough of your post to gather the details of the magical category there.