It doesn't have to be malicious to be dangerous, it can just be wrong. Nobody's running a test suite on these things whenever a Windows update comes down, nobody's testing them on a wide array of Windows configurations, and from the ones I've seen before, they can cause problems with your PC.
There are other applications which do something similar to the one linked here. Destroy Windows 10 Spying, to name an example. This is a GUI app. Does the same apply? Are the default options not sane? Did you read and understand every line of all software you run?
