Oden specifically questioned barrier haki.
Oden doesnt say “Barrier haki” I have no idea why you think Oden was randomly so technically specific
anyway I’ve shown you that Zoro produces concussive force from his CoC without barrier haki so obviously Roger and Whitebeard can do it too
in relation to barrier haki application
and I answered you in no unclear terms. You are implying erroneously that "stronger" = knowing more haki applications. All it tells me is Oden didn't know how to use emission barrier haki
Except Hyogoro says that this “barrier haki” is the basis for ALL WANO samurai haki swordsmanship
it’s like the very basis of how Wano samurai use haki.
that’s why random no body fodder samurai like Zoro’s master in random EAST BLUE can do barrier haki… because Zoro’s master was from wano
are you saying that Oden and the scabbards don’t know a haki that is so common in Wano that Zoro’s master in east blue knows it?