This is something that has always bothered me: the vast majority of game I've played don't allow the player to remap gamepad buttons to whatever they want, no matter if it's on PC or on consoles. At best, they will provide different button layouts, but seldom the chance to configure the layout to suit your preferences. It's even more jarring to me on PC, considering that, most of the time, any keyboard key can be assigned whatever function you want. I thought that maybe they didn't want the player to create a layout that makes playing the game impossible... but then again, a player can run into the same situation with a keyboard.
I know that this is not a problem for most games, but there are some particular situations in which remapping one or two keys could have been useful. I finally stated playing Darksiders II on PC yesterday and I just can't use abilities while I'm locked to an enemy. The modifier key to use abilities is LB, while the lock-on key is LT. Since there's no "sticky" lock-on, I would need to use one finger to press two buttons at the same time... pretty unconfortable. The same happens with shooters that don't put the reload button on X or RB, like Binary Domain (IIRC). It plays so similar to Gears of War that my muscle memory kicked in pretty heavily during the first few hours with that game. Being able to switch the Reload function from B to X or RB would have been nice.
So, yeah. Is there any logical reason why developers don't include the option of remapping gamepad buttons on their games?