You're making it sound like that mistake was an "I spilled my coffee on you boo-boo" and not a terrible engineering decision that should not have passed anyone with actual experience in the embedded industry, let alone a team. If this is the kind of engineering oversights that ends up in Tesla SW, only God knows what else they have lurking in there that hasn't yet reared its ugly head.

>Tesla is very good at automotive software engineering.

Citation needed. Repeating something doesn't make it true.