Unfortunately given the scope of that paper, it doesn't sound like typing patterns can be used just yet. A sample size of 36 participants doesn't handle the scale involved when going against 'The Internet'.

Also, the paper collected timestamps of each keystroke, something that'd need to done on suspects; however, if they are already suspecting you, they probably have other ways to identify you.

Finally, how in the world does a paper like this get away with having 'nowadays' in it? I know its a legit word, but, just seems awkward.

Was it written by an ESL speaker? Sometimes non-English speakers feel insecure starting a point without "However", "Because of this", and other conjunctions. If you don't need a conjunctions, you can say "Nowadays", but you don't need it. It's like the "auto" keyword in C. Because ESL speakers cram a lot of grammar into a few years, rather than spending years making simple sentences, they often use advanced patterns when simpler ones would suffice.