^I'm no expert but I think part of the problem is "fixing it" for one brand then "breaks it" for another. If they set the protocol to work properly on his Kuro it then fails on another guy's Sony, for example.
"Hiccupping Downrezing Mangling Interface"
In A/V reproduction accuracy, there IS no concept of "accounting for personal taste/preference". As art consumers we don't "pick" the level of bass, nor the tint/brightness of a scene's sky, any more than we pick the ending of a novel or Mona Lisa's type of smile. "High fidelity" means "high truthfulness", faithful to the original artist's intent: an unmodified, neutral, accurate copy of the original master, ideally being exact and with no discernable alterations, aka "transparency".