It must be legit if it was advertised on facebook!
I try to look up a paper about it—>
Edit: 10.1016/j.wjorl.2016.11.005.
Edit2: https://doi.org/10.1183/ 13993003.01320-2019
Edit3: https://doi.org/10.1177/0194599818764896
I call BS after reading p384 of the 3rd paper I cited!