That's true, with respect to your lineage.
Really? Would you care to explain how you have determined that my lineage is purely Kukkiwon?
I suppose we could have a lengthy discussion about being "rigidly repressed"; but if that were the case, then why would the Korean pioneers study Japanese martial arts if that were the case? Why would the Korean people adopt anything from Japan, whether karate, judo, kendo, or Japanese karate innovations, uniforms, etc. ? And how about having Chinese flags in Okinawan dojo?
I'd guess that, given that the native martial arts were supressed, the only option available to those with an interest in MA training was to study Japanese or Chinese arts. And given their understandable desire to re-establish their national identity after their liberation from Japanese occupation, I'm not at all suprised that they'd downplay any non-Korean influences.