I agree with all explanations of the posts so far, but i think there is some potential there...
In my opinion, the maximum moving speed of my hand/arm rotation is far higher than what i need on the track with the given ratio of steering angle of the car vs. transmitter wheel angle. Just watch even the pro drivers, they dont use soooo fast turning on the transmitter.
So i conclude, that given a smaller ratio of steering angle of the car vs. transmitter wheel angle and the same max car steering angle by having more "throw"/max angle on the transmitter could (maybe) lead to a better drivability even for lets say experienced driver...

The is an app for my smartphone (smart protractor or something). If i hold my phone like a transmitter steering wheel, and rotate it to the max comfortable angle, i get results as follows:
left angle (from center) : about 50 degree
and roughly the same to the right
So the whole arm rotation (transmitter steering angle) i feel comfortable with is about 90-100 degree. Typical transmitters maybe get to the half of that value.

I didnt had the chance till now to grab a good transmitter like m12 for example, but i simply would like to know the rough value of center to left max angle or whole angle.
And the last Question, is there a Radio, where you can adjust that? Propably no...

sorry for the english, it isnīt my mother language... (german)
sorry, too for the long post
Greets, Phil