What are those elements though, and how then is it possible to say that it is the DMC formula given the fact that these games don't exist in some artificial vacuum that only you seem to know about? Even if we take what you said at face value it still makes no sense because these games all play very differently from DMC. With the except of DI the formulas of Bayonetta and God of War are distinct from DMC outside of the most general comparisons.
This is the first good question you asked me. Unfortunately (and I know this will sound like a cop out) I don't have the energy to isolate the specifics anymore. Besides, words aren't very good at conveying some things, the "feel" of a game is one such thing.
Suffice to say, if you've played Devil May Cry, Bayonetta (made by the DMC creators), God of War, and Dante's Inferno, you will notice a very specific isometric perspective, pacing, and interactivity mechanism involving combo chains and enemy dispatching, that is quite unique from your earlier example [http://www.youtube.com/watch?v=gDK02S1tryo].
Besides, even if you did manage to find a game that pre-dated Devil May Cry and had enough characteristics involved that I believed it passed, why do you think I would have any reason to care? All I was saying is, "hey, these kinds of games are becoming derivative, I wish the developers would innovate a bit more." If you found an earlier game, what does that change? I'm still bored of it.
Even though I don't care, I wouldn't even be wrong as pertains to mentioning DMC as being the "first," because the context of the message did not include any earlier games. I could very well be meaning the first of only two games (God of War and Devil May Cry) because those are the only two that were mentioned when I said that.