I would slightly disagree. What it states is true and tornado motion allows faster airflow then a normal straight through motion. A tornado motion therefore is better because it will allows air to get to the destination faster. The problem is, I don't think in this case it will do that much because it is sucking it soo much air the tornado it will be just overwelmed and clogged and probabally be ineffective, and thats why you probabally won't notice a difference.

Tornado=Crap Yes, but the theory is correct