I went back and looked at your principles, and I just got to add my opinion. Those points you adressed are also found on the God of War games, especially more so because they have less combos and offer less strategic approaches to each battle.
Even on Titan, GoW games were relatively easy when compared to most stapleholds in the Action genre. Granted they have one of the best stories ever made for the genre, and they're amongst the best in all overall aspects, I just think that those points you gave are a bit unfair to point only to japanese hack and slash ;)
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