To clarify a point, when I said, "There seem to be two separate arguments running about in all this," by "all this" I meant the posts and the comments as a totality, not your post specifically.
Nevertheless, isn't one of your major arguments for why the execution is flawed that the Super Young Team don't resemble Japan's various types of superheroes?
"The Super Young Team contains NONE of these established archetypes. That's probably why people are complaining so much about them. We know what heroes from Japan look like since the mass introduction of many of these characters into the comic-reader's literally consciousness. It creates a preconceived notion of what they're "supposed" to be. And things that deviate from expectations and 'normalcy" are rarely met well by fans. We aren’t the nicest bunch when it comes to change, afterall.
"Furthermore, the heroes that do pay homage to these older archetypes, Big Science Action, are a sign that Morrison did do some research (or just remembered things from his childhood). It contained many of the archetypes here, and blatant shout outs to others.
"But no magical girls and only a single mecha, two of the more popular forms…"