[mpdehaan2]

I mean that they are building a tool and the primary example is showing a typical passive-aggressive business email and the user is trying to make it worse.

This is a strange reason to write a tool, and perhaps symptomatic of the corporate culture that sought to produce it.

Teaching people to be nicer would be more interesting, and it's clear it is not dwelling on the right elements since it neglects to detect the overall tone of the email as being problematic.