Well, they seems to have hit all points, though their concern of DC turning into a faltered jack-of-all-trades might be a tad much. I say that because yes, if you look at all the parts separately then of course it may seem overwhelming and risky, but, if you look at the way the various parts are all interconnected (such as politics being used to procure cards that can help in battle) then it seems a more solid concept on paper.
But of course the jetpack on a dragon bit is likely what will illicit conversations among pundits for many a days yet.
