Issue is if all their human software engineers have been vibe coding everything all the time (which apparently they are according to Boris), then they will be getting stupider and worse at writing code over time from lack of practice.
By this point they're probably pretty bad at writing code
I have definitely become much worse at writing code, myself, for that exact reason, but I strongly suspect that's orthogonal to this, especially since this is a tiny amount of code. Underhanded code is not really a software engineering discipline. It's largely a psychological operations practice. I think they're possibly just not quite trained in the art of what could be considered intelligence tradecraft.