There sure are a lot of outside-to-inside blocks in Taeguk forms.
When I joined my new dojang at the end of 2018 I began learning Taeguk forms. I’d learned the Palgwe style in my other dojang, and since I can’t remember which forms I learned as a child (other than the universal kibon), I’ll claim Palgwe as my foundational set.
I started thinking about the new language I was learning. If Palgwes could be summed up in one or two moves I’d say they’re very heavy on using the front (or long) stance and double knife hand block (in a back stance of course).
Taeguk’s main theme seems to be the outside block…from the back hand…in walking stance.