also known as "never attribute to malice that which can be explained by incompetence", which to my gut sounds at least as likely as a cui bono explanation tbh (which is not to be seen as an endorsement of the view that cui bono = conspiracy...)
> Never attribute to malice that which is adequately explained by stupidity (1), but don't rule out malice. (2)
Nevertheless I agree with you and think (2) is wise to always keep in mind. I love Hanlon's Razor but people definitely should take it literally as written and/or as law.