Never ascribe to Napoleon etc.

https://quoteinvestigator.com/2016/12/30/not-malice/

TL;DR Seems to have been first attributed to 'Napolean' on Usenet in 1997!

That's Hanlon razor :) https://en.wikipedia.org/wiki/Hanlon%27s_razor

so what would comprise the requirements for an adequate explanation of incompetence in this case?