This exists because sales guys don't know how to type, and generally have poor reading comprehension.

Typing out 3-4 sentences is an order of magnitude harder for them than making a few minute phone call.

I require everyone I hire take a typing speed test and know how to touch type. If they can't and they are a must-hire, I make their first two weeks involve an hour or two of typing tutor use. It's essential to an asynchronous workforce.