This is a very recent change in PEP8 I was not aware of.

Else, yes, there are stricter ways to consider the document than others (I don't consider Twisted as following PEP8, and others might). I also believe the less the developper need to think  and the more tools are here to do the work and check whether the code is valid, the better it is. When it comes to styling, it's not a matter of judgement, but of culture and personal preferences, which one should generally avoid in a project.

A fix has been integrated to pep8 (the tool) to reflect the change in the PEP.