Yes, it could be. But it is a hypothetical that smells like a conspiracy theory. I wonder why you think it is a good idea to go for these hypotheticals?

Are you arguing that the system may be more resilient than it seems? Like, maybe there is a conspiracy working on security. And they keep themselves secret so attackers would be susceptible to under-appreciate the real level of security and make mistakes that inevitable would caught?

It seems like a over-stretched explanation, doesn't it. Care to explain yourself?

I mentioned it mainly because I find it interesting. We are probably just slightly less lucky than it seems. This particular case doesn't look that much like a parallel construction to me.