Wrong - being able to operate the car correctly trumps being a bit distracted. If you cannot operate the car you won't worry about a bit of distracted because you will be trying to change gears and steer at the same time.
Only an idiot/troll would suggest the difference between driving a manual with one hand and two hands is "actually quite small". Even more so if the left hand is being used for other things.
Moronic comment from our resident troll.