Quite frankly, this is about how you hold your phone when using it? I have found one handed typing to be impossible, which makes buffing a floor while texting impossible almost (I hunt and peck almost). So most of my typing is two handed and I just quickly stop what I'm doing, fire off a message, then resume what I am doing. The hands just wrap around my phone like a glove especially using a rubber case which helps me grip it better.
Just curious.