It is not prefix. "Action/RPG". Means a mix of genres.
They are different. Just different. Even non-expert will tell you that.
You are living in the world of black and white?
(Hint) There are also shades of gray.
The same way you keep nitpicking that if game was marketed as X, you must take it as X, even if it is actually Y.
PS
If this doesn't qualify as thickheadedness, then I don't know what it is.
Because you don't even attempt to understand the point being made. Diablo is Action(95%)/RPG(5%). Action goes first. OK, I'll stop proving anything to you here, "because you're not a freaking Vulcan", right?
My service provider sends me occasional promotional SMS.
PS
I don't know what do I need to do to start getting telemarketer calls even on a normal phone. Never received a single one in my life.
Diablo is not 100% RPG, but it is still a good game on its own. Comparing BG to Diablo is comparing apples to oranges. Some posters tend to suffer from unhealthy elitism.