This isn't really anything new, just adding air to a self watering bucket in bucket system, which will allow "overwatering" without the associated issues. This might be a good method for keeping mother plants, low maintenance, good growth, stops bug issues(mostly). I've also wondered about doing something like this but in a deeper pot/bucket so that the saturated area only comes up to the mid point in the container and the top half would have the ability to dry out a little more, even if only the top 1/2"-1", mainly because surface level roots like a wet/dry cycle, even in true hydroponics, generally you want the top level of roots to not be totally submerged. Conversely I've considered doing a DWC "slurry", where you would have a thinned out "mud" and bubble it, probably a 50/50 of organic medium and water., although I really don't want to deal with a mud slurry indoors..cleaning up spilled water is enough of a pain..nevermind mud.