I've also heard it expressed as "Never attribute to malice that which is adequately explained by incompetence".
Although in this case I'm not sure organisational incompetence is necessarily a good enough explanation given there are ex-Microsofters in the discussion suggesting that people would actively have been weighing up whether or not to screw over Keivan. (Obviously I have no idea how likely that is to be true either.)
When "organizational incompetence" consistently yields the same result, it's not an accident. As the systems thinkers say, the Purpose Of the System Is What It Does (POSIWID). It's the same way wily teens are incredibly bad at things they never wanted to do in the first place.
