As awful of a failure as that is, and as fun as it is to mock Tesla for it, that claim was that they're aware of edge cases and working on fixing them, not that they're already fixed. So your criticism doesn't really make sense.
A system dealing with 'edge cases' by special casing them is not going to work for driving, driving is a continuous string of edge cases, and if you approach the problem that way you fix one problem but create the next.
