I think using RS for throwing would be worse because you have to hit the receiver button right after. You need to aim with the left thumb and be ready to hit the button immediately with the right thumb. Otherwise you would aim with the right thumb and somehow release it and then find the correct button. That may take a brief moment making the ball placement now incorrect.
I do understand your point about scrambling but just think RS would be even worse.
Sent from my SM-G920V using Tapatalk