And it's a matter of predictability really. Almost EVERYONE that I've played serve to my backhand after realizing I have a 1hander during warmups.
I'm chilling nearby the alleys already and they still kick it there. You do it enough, then I'll just step in and take the kick away. It's when I'm not expecting it and the ball gets away from me, that's when you have trouble regardless of 1hand/2handed backhand.