You should be critical. If you made something, you should proof that it works. Especially in todays world. This article contains no proof that their work actually works.
Except that all of it is open source and you can go try it. So this is basically me saying "I made a really nice cake, here, try some" and you're plugging your ears and going "lalalala can't prove this cake is good, lalalala it's shit".