It makes sense to me as I prefer RTAs to Boros, same form factor as a BB type AIO, takes RTAs instead of Boros so little possibility of resistance problems because of the (flawed) clamp down pressure connection of boro tanks, if there is a leak it won't find its way down to the board and,,unlike SBS mods you (probably) wont be blocking the air inlet with your fingers. It looks pretty stupid with the tank raised but I assume you would only raise it to fit the tank and lower it for vaping.
I still won't buy one though as I prefer a setup to be so bulky I walk round in circles when I stick it into my jacket pocket but I find it more appealing than any Boro device.