Doing an internet search for mythodology, I found Marco Abis named his website mythodology. As he says on mythodology:

Towards the end of 2005 I found it in the book “Weinberg On Writing” in relation to the (in)famous writer’s block (but interestingly the quote is from Tom Gilb):

‘Writer’s block is not a disorder in you, the writer. It’s a deficiency in your writing methods-the mythology you’ve swallowed about how works get written-what my friend and sometime coauthor Tom Gilb calls your “mythodology.” Fieldstone writers, freed of this mythodology, simply do not experience writer’s block.’

[..]Agile methods are the next (current?) step but are still only scraping the surface of the problem having myths themselves which get in the way of the true Quality.

Hear hear!

As Agile ‘methods’ (I’m still / more and more against methods ) become mainstream oversimplification becomes rampant, as was to be expected.