For the bit about Houken calling him a fraud, that has to do with Gekishin's lack of Weight and Hara wanting to give Houken some character growth.
From what I recall, Riboku lured Houken onto the battlefield with the promise of another powerful General in Gekishin. Gekishin's military record on paper would put him on par with the Qin 6 and Great Heavens. With Houken not comprehending Ouki's words fully, he goes to the battlefield once more expecting another great duel to test his martial might and perhaps come closer to understanding what it is about being a Great General that made the likes of Ouki strong enough to best him in a duel.
He finds Gekishin and finds him completely lacking what Ouki had (i.e. Weight). Despite all his accomplishments on the battlefield as a Great General, Gekishin immediately crumples under Houken's might. Without Weight, without that thing which intrigues and frustrates the Bushin so, Gekishin is indeed a fraud in Houken's eyes and while he perhaps isn't closer to understanding what the Weight of a General is, Houken does now know what it isn't. It isn't something that is acquired just by being a General or even by being a General with a long and successful battlefield career. There is something more to it that Houken has yet to find out, that something being emotional attachment which Houken rejects.
As for the rest of that post, Geki got Kochou'd. Lmao.