But doesn't arm play into range? Make a play deep in the hole and a strong arm can make the difference.
Again, hard to say. It obviously does, but by how much?
An average throw from SS in the hole is about 130'. Someone who throws the ball 85 gets it there in 1.04 seconds. Someone who throws it 90 gets it there in 0.98 seconds.
How big of a difference is that 0.058 seconds? A guy running 20 MPH covers 1.7' in that amount of time. So that is definitely a big deal.
Is giving up 1.7' to every runner worth getting to more grounders? If so, how many more grounders caught equals the outs lost due to giving up those 1.7'?
What about transition time from glove to throwing hand?
All this data is available with statcast. Someone just has to calculate it all.