Indeed. I understand why some of this is necessary, but a lot of it seems to be a kind of process bleed, where "how we do things" in on part of the system just

Indeed. I understand why some of this is necessary, but a lot of it seems to be a kind of process bleed, where "how we do things" in on part of the system just gets copied across without any real thought as to whether it's really necessary across the whole system. One of the more interesting aspects of working in safety critical software was the thought that went into how to architect a system to minimise the amount of it that needed to be built to the highest standards so that we could focus the effort in the most effective way.