Answer #1: the original track is primarily groove-based. The bulk of it is driven not by any particular melody (aside from the chorus), but by the percussion, the beat, the rythm. This, in my opinion, makes it absolutely perfect for a rap arrangement. And this is comming from somebody who, generally speaking, doesn't even like rap.
Answer #2: Who the fuck are you to tell me how I should or shouldn't arrange a particular track? Lemme explain how remixing works; we have an idea, and we run with it. It's not about conforming to anything, it's about taking whatever ideas we have and bringing them to fruition. I thought the mix would work well as a rap/rock blend, so I (with jose's help) arranged it as a rap/rock blend. Got a problem with it? Don't listen to it. Simple as that. But if you're gonna come in attempting to read our minds and claiming that anything with vocals is just an attempt to conform to societal whatever-the-fuck, then kindly do us all a favor and go fuck yourself with a hot iron.