Your point is technically correct, but it seems a bit preposterous to say that the old drumming music was flawless perfection in introducing these sort of effects, to the point where any change would by definition be a determent. How would you know that? How would anybody know that?
yeah, I wouldn't know, but if the old recordings seem better for inducing trance and the newer not I offer an explanation why that could be without the newer generation of Haitian voodoo drummers necessarily having to be worse drummers.