They literally trotted out Hanlon’s razor as a moral argument that we should not blame Meta since it was probably just a whoopsie-doodle. This is a very common moral argument that people implicitly make or explicitly advance when using it.

I am pointing out how that is a absurd moral argument deriving from the rule of thumb. If anything, the corollary is the literal opposite.

Any stupidity indistinguishable from malice should be treated the same.

The usage as a epistemological rule of thumb just points out how great harm is usually caused by stupidity, intentional or otherwise, rather than intentional desire to cause the specific harm. If you aim to reduce great harms targeting just malice is not merely inadequate, it is likely missing the overwhelming majority.