Or people do realise the risk and are balancing the risk of speed of dev with the likelihood of something going wrong (and them being blamed for it). Imperfect

Or people do realise the risk and are balancing the risk of speed of dev with the likelihood of something going wrong (and them being blamed for it). Imperfect systems often produce a lot of value, even if it means playing a game of spinning plates to keep it going. It's very possible that the value produced by this system overshadows the lost value from an ocassional black swan event as a result of the systems failure modes.