We feel we need to share our article on this matter given the growing marketing efforts to promote this method to water (and kill and then buy more) orchids!! We hope it helps!!
For balance I will say that some people here say they have had success with this method. But I think it only works in the right environment (not sure what that would be).
Personally I don't think it gives enough water for one thing, and I always prefer to water with slightly warm water rather than cold. This is Phals we are talking about after all and they are tropical plants.