That's an interesting take. Can't say I know enough about the origins of grime to argue or affirm that point. To my mind the musical elements in the gumbo are almost an afterthought to the general form that is MCing; I've seen people spit bars in dozens of languages over a million different musical styles.
I guess the reason this is even being discussed is becuz this is ostensibly an electronic music forum, eh...
Given how abstract some US and international hip hop is becoming it seems like musical novelty is a department where grime shouldn't just rest on its laurels, and thankfully with UK electronic music there's a pretty deep well to tap.
Now: can we get lyrics that are about something more meaningful than money/cars/hoes/jewelry/shoes? Not even looking for political consciousness at this point, just waiting for someone to say something fucking interesting. There's that one recent track, forget its name right now, dude talking about his experience of "blackness" vs. societal perception... that one's cool.