That's one reason aeroponics works better at getting oxygen gas in the rooting zone. A well designed aeroponic system will only deliver a mist of a certain particle size. However, it is important to keep in mind that the "TYPE" of roots that form on those cuttings in an hydroponic or aeroponic environment are not the same type of feeder roots that form in soil. In other words, IMO there is NO ADVANTAGE to the novice rooter in using one of these systems for rooting fig cuttings because the cloner roots will have to change "function" in the soil mixture. One can lose plants in that process. Fewer plants are lost with other propagation methods.
But it sure is fun experiment. My mist generator also has a RED light which colors the misty fog red......real neat looking when it is running. It is a pleasure to watch that thing running and the cuttings responding......it just is not needed for those easy to root fig cuttings.
Dan