Yes one of the problems with any form of HIPS is the potential for lots of pop-ups and for users with limited experience it can have a fearful effect, they either deny or allow everything negating some of its value. A little like many outbound connections and anti-leak and or component control warnings, they can become very confusing.
I too fall into the 'I don't like Real Player' camp, it wants to take over the world just because you use it for a streaming audio broadcast.