Well good thing that this style guide is just what W3C considers best practices and is not a standard.

> While the tips are carefully reviewed by the participants of the group, they should not be seen as anything else than informative bits of wisdom, and especially, they are not normative W3C technical specifications.

We shouldn't be so sensitive.

> [Our published tips] should not be seen as anything else than informative bits of wisdom, and especially, they are not normative W3C technical specifications.

Then they shouldn't be publishing "tips" in the first place.

I'd very much like to see resources put in more meaningful things, like, drafting standards.