Please trust that Larian know what they are doing. They have developed and balanced games for over a decade or more and you are some dude online who thinks he knows everything. I trust the professional game developers. I really hope they don't take your suggestion and then actually mess up the balance of the game in so doing.
When the game is released, go into the editor and make a mod "balancing" it the way you think it should be and then play it, realize how terrible of a class the rogue then becomes, and wake up.
Damn is this guy butt hurt or what? Haha I dont remember claiming to "know everything" but what i DO know is rogues are over-powered and from the looks of the many threads and discussions on this topic so does the vast majority. You're just another one of these idiots who's logic is if you don't like it don't play it (I'm assuming from your mod it to be balanced after release comment)