OK, stupid question but why use hogus at all?
Consider this. Boxers train with head gear and other protective ways of not killing each other, but then fight without all that stuff. So do MMA fighters and such. Why does Tae Kwon Do fall into the areas of 'compete with body armor' (WTF rules) or 'compete without touching (point rules)
There are a lot of ways to 'train safe' and then 'compete hard'
I tend to think that hogus and pads and headgear an such could work well as part of the training regime to avoid certain kinds of injuries
I think if you got rid of all the padding, you would end up seeing fighters using tactics and techniques that would get away a lot of the types of things we complain about 'not being realistic'. I mean, yes, you always are going to have safety rules in any sport that makes it 'no realistic' but...good grief... olympic sparring is so far removed from any practicality with the tactics and techniques it encourages and allows.
Maybe a lot less 8 yo kids who treat TKD like a glorified dance/soccer/after school babysitter but a lot more recognition of TKD as a serious martial art with a serious sport component