So what you're basically saying is that unlike every other class, marauders have to learn not only what their class does, but they have to learn what every other class can do, what the animations look like, what the common opener / attacks are, and then think of the marauder and what abilities it has to counter that class. And all that needs to take place almost instantly when you see an opposing class so you know how to beat them 1v1.
If the above is correct, then I agree with your post 100%. It's why I enjoy playing a marauder. That and the fact that it just decimates 1v1 fights when you learn how to play it correctly.
This is slightly off topic, but how do you fight an operative if your CC break is on CD and they stealth open on you? I realize you want to smash them out of their stealth if you know they're nearby so they lose that stealth burst, if not the stuns + backstab abilities, but if an operative gets the jump on you with their openers + cc and you don't have a CC break for a 1v1 situation, how do you deal with that? Or is the only thing you can do is attempt to escape once the CC is over?