Nice flashback, didn't remember that, looks like the safeguards can spawn everywhere and they caused this huge ass explosion that DID NOT scratch the exit to the next level, this is the real shit we are talking about.
I'm confused for the time being 'cause there is this one governer and I'm sure the other one was a safeguard, both appeared at the same time and the safeguard was definitely trying to stop the governer from spawning. My problem is that I don't know how the relationship between governers and safeguards was, anyway, next chapter might give the answer.