You could say "You functional list does not properly support composition. Here are some problems." You posts were needlessly combative. I only spoke out because I have seen this kind of thing cropping up recently with respect to Python functional libraries.
"people are encouraged to write python other people understand."
As I said, the semantics of his library are reasonably clear on inspection doubly so if you read the docs.
EDIT:
I just re-read some of your other posts on this thread. You really do keep banging on "He made his own 'dialect.'" To clarify, no he didn't. Making a library isn't a dialect. A dialect needs to be a significant enough departure that you would actually need a different parser/interpreter. That is a "dialect." If you would like I can point you actual Python dialects. This is a library. Deal with it.