I don't know what university you went to, but it definitely was on my course. Second or third year. The idea that you wouldn't cover relativistic QM in undergrad physics is pretty absurd, and probably indicative of how shallow American undergrad degrees are.
Yep, didn't mean to suggest the course is irrelevant to computer scientists. I meant to imply that if they're teaching it to CS students third year, presumably physics students are learning it earlier and/or in more depth.