"His structure of KK to ground to everything in between" is not "his"-- it is Dog Brothers Martial Arts.
My term, "structure" is one I use to differentiate between Frazier and Ali. Their martial art is boxing, their structure's differ. I actually adopted this from DB RCSF tapes, when Crafty showed Eric's "X" as being more of an hourglass. He refers to Eric's "structure", I believe. It is all under the umbrella of DBMA. I would think that Chai Sirisute's structure is different from Buakaw's in terms of Muay Thai as well.
It is just a handy term, and maybe too general.