Wow, can't believe that there is a thread with this title. This is Baruto's second basho and you're writing him off already???
It is, of course, far too early to say. From the years I've spent watching sumo it seems there is a fairly common pattern of a newly promoted makuuchi wrestler getting double digit wins on his first basho in the top rank, then failing to do so well in the next basho before either moving on or settling. As it happens, Baruto has the healthy record of 6-3 so far, and while he doesn't do so well against the better wrestlers, I am pretty sure his time will come. Afterall, you could see from the way he outmuscled Kotooshu that with more experience he will be a real handful for even the best rikishi.
I am sure that even Kotooshu will get his act together for the final promotion if/when he gets his body back into condition again. The way he is wrestling now you can see that he is not 100% physically okay, once his body heals up he will be challenging for the yusho again.