Fed simply was never as dominant at SW19 as Rafa is at RG. (another difference, though, is that there's no grass 'season' to dominate, so while we always had more than two months of Rafa sweeping the floor with everyone else, there's nothing like this for any other player over so many years (Fed and Novak respectively more or less did that on hards, but for a shorter period).
you're right of course, of the quality of narratives and drama. and you do point out that you don't blame Rafa for it. but still, i don't think it's right to talk about different types or manners of winning - it's not about the specific way in which he dominates, it's about the overwhelming extent to which he has done so. but again, this is ignoring a number of close matches, the whole injury thing and the Novak narrative.
btw, to an extent, this whole thing is Fed's fault. with the exception of Rome back in the day, Rafa hardly played any nail-biter tight great clay finals because so many times, the guy on the other side of the net was Fed, who was head and shoulders above the rest on the surface, but personally incapable on challenging Rafa.