When you talk about "rage", specially in a society like ours, you have to take into account not only one reason. The game is not the only reason, despite the fact that the game is a peace of garbage competitively.
Genetics, social status, cultue, education, upbringing, stress, work, family, confusion......life is hard man.....and when you pick up the controller to relax a little bit and improve as a person, you fight a teabag that watched a combo video on youtube, picks braindead characters and kill you free jumping, doing crazy shit on wake up and playing like an epileptic patient. It is not everyone that going calm down and relax when they realize they are getting fucked in the ass by random shit the developers have thrown there.
You have spoiled people too.....people that dont like to lose (who likes that?). Nobody likes to lose, but damn....there are people that cant control themselves.
But sure, who created this thread is completely wrong. The game is the opposite of what you described. It's appealing to casuals and makes things harder for experienced ones, because the lack of balance and mechanics that reward the non thinker instead of patience and reactions. The game is the opposite of what you just described.