It's a different world where a lot of the code is a one-off, building the right thing is more important than building it right (technically) and people don't really have a deep understanding (or curiosity) about the code.

I don't think it's necessarily wrong and I have seen this approach bring in a tremendous amount of value despite what the Engineering intuition says. I myself came from that world and switched into Python and onboarded into the normal software dev world.