I think the author of this tool is totally missing the point of the print/sign/scan legal hoop that one sometimes has to jump through. The law sometimes requires certain documents to be "in writing" and there is, unfortunately, a legal tradition tied to this that "in writing" means "physically on paper", which many lawmakers and bureaucrats unfortunately haven't managed to properly transition into the digital age.
However something that is quite a separate matter is the question of whether one needs to actually be in possession of that piece of paper. A scan of an original serves as proof that the original exists. ...and this is usually all that anyone requires for practical intents and purposes.
But: You're not supposed to do print/sign/scan, and then just throw away the original. You're kind of supposed to keep it in case you're ever asked by a court to produce it. The document partially loses its forensic value if no original can be produced.