Most of us work in tech. Imagine an auditor coming in and trying to sort out if one of the most complex systems at your company is "safe." What's safe? Every previously known failure mode and every new one you're going to be blamed for when it happens.
Which is fine for low states they deal with and not fine with planes.
MAYBE, MAYBE the insurance company assessments/audits are kind of related to what you are talking about. But not really. But not the FAA ones. They are such a different beast with so much brain power involved along with people with a combined centuries of experience in this stuff, it's hard to explain without being around it.
There's so many moving parts to aircraft certification honestly I was surprised when a new design would get type design certification. Which is why Boeing tries to do things like shoehorn in a new airplane under an older airplane type design (MAX) so they don't have to get a whole new type design approved.