Author here, thanks for the vote of confidence!

Regarding the name, it's true that the word "cutlet" isn't typically an example of where you'd want to use the foreign spelling functionality. However it had several other nice points:

1. It follows the tradition of naming Japanese language tools after food the author likes, like MeCab, Sudachi, my own fugashi, etc.

2. It has a concrete image that's easy to convey, which is useful mnemonically

3. It's a very clear demonstration of the foreign spelling feature (even if not a useful one)

4. The word "katsu" is a good example for showing the difference between Hepburn and other romanization systems (katsu/katu)