I mean, I agree that the punctuation mishap is a better cover story, but why would any particular language have “zero chance” of being mapped to the programmer’s keyboard?
You left out a very important qualifier: in the middle of a code line
The chances of someone accidentally fat-fingering a keyboard layout switch, typing one character, then switching back again without noticing while typing a line of code are very slight indeed.
Plus the fact that you'd need to speak a language written in that alphabet to have a plausible reason for having the keyboard layout enabled in the first place.