they're still called/considered bugs here...
and i think the problem is on the dev's ability to code stuff...so don't worry...
A bug would be for example when you chose "yes", but the game continues as you told "no". Or a scene would appear even you did a previous choice to avoid that scene... and so on...
Exceptions are errors in scripting the code which will lead to a crash
to be even more detailed:
exploits = being able to abuse the games' mechanic in a way you are not supposed to do
exceptions = errors in scripts - which lead to a crash in most cases
bugs = game does behave in a way it shouldn't
But to be honest: mostly a bug leads into an exception, which of course excuses your mix-up