Choki Motobu does not really come from Taekwondo`s lineage (I have never seen any thing that would hint at any Taekwondo Pioneers have studied with him) but he does share our lineage in that he studied with the same Karate teacher Funakoshi studied with. The course of Motobu and Funakoshi`s styles in Karate took was vastly different in that Motobu kept a lot of the old style traditions and emphasis on real life combat while Funakoshi kept the Kata and the movements but downplayed the applications. They both used forms in their training but Motobu kept his study narrow and deep while Funakoshi studied wide and shallow. Anyway this is what Choki Motobu had to say about Kata (Hyung, Tul, Poomse, Poomsae etc):
"All Poomsae* use the socalled postures (Poom*). In fact, there are many kinds of postures and many kinds of Poomsae. While learning these postures should not be totally ignored, we must be carefull not to overlook that they Are just forms or templates of sort; it is the function of their application which needs to be mastered"Read the quote above and think a little about how this can change how you view your forms. It is truly an excellent explenation on how Poomsae should be viewed in a pragmatic sense. That being said I know that Poomsae is a lot more than this (mastering of basics, Ki development etc) but in a pragmatic Dojang wich forcuses on the practical application of Taekwondo this is how it should be, and this is the older way of looking at them from a combative viewpoint.
(* The translator kept the words Kata and Kamae wich I changed to the equalent Korean terms for better understanding for the Korean stylists. In the original translation you switch Poomsae with Kata and Poom with Kamae).