There are factors to consider, like the brewer’s own environment, a burr’s constant exposure to humidity, and the method’s effectiveness on multiple doses. If the humidity in your space is already at a certain level, the added humidity created by the mist may be too much.
From what I can tell, relative humidity in the room does reduce the amount of static a little, but still not as much as you would get from performing the RDT they suggest in the study.