Eh it’s about the same level of footgun you might see in C99. It’s not great but you’re being hyperbolic if you ask me.

I agree that most scenarios are not going to be so perilous. However, GOTO FAIL[1] would fit your C99 foot gun description neatly, with repercussions that would approach the peril of my metaphor within at least an order of magnitude.

https://en.wikipedia.org/wiki/Unreachable_code#goto_fail_bug