I'm not sure how I feel about someone writing something and making me the author. I guess attribution makes sense in the form of paraphrasing. But I tend to think of commits as literal quotations.
The first hit on Google and Bing for "git committer vs author" brings up this SO entry:
http://stackoverflow.com/questions/18750808/difference-betwe...
So, I don't think I'm taking some fringe view here. For my part, I don't think I want someone else writing code and putting my name on it.