It used to be that many game platforms either didn't support exceptions at all, or not without a massive global performance impact. Now, there's one major game platform that doesn't allow you to disable them anymore!
IMHO c++ exceptions are still a bad idea from a code maintenance point of view though, which is why most projects still ban them.
C++ RTTI is almost useless though - it's basically a code smell...
But to pretend to be on topic, move semantics are actually a useful feature so will likely see introduction into game codebases over time