It won't be, they did it cause it was difficult for several people to hold RB and use the right stick together because it would cause different issues. If anything it should make it easier for guys like me that use the stick more than the body.
It would have been better to just make the left stick be what you use the guide in for natural collisions instead of a button, but I guess people have the need to have a "button" for the auto big hit.