From what I've seen, much of the controversy revolves around what might be described as infelicitous phrasing. Discussion on python-dev tends to focus on the actual issues, but that changes once a PEP goes "into the wild". Perhaps right before you wish to release a PEP to c.l.py, you should ask for an editing run specifically to focus on the political side.
This will not avoid the mud from certain quarters, of course, but they probably should be ignored.
I very much doubt it. If the language is too slick, we'll get complaints about a "marketing PEP" (see PEP 287's fate).
--Guido van Rossum (home page: http://www.python.org/~guido/)