That's fair enough, I guess... the media always loves the candidate on the rise. But maybe the biggest flaw in media coverage of the primaries is the assumption that candidates on the rise in polls tend to continue to rise, when empirically it's much closer to a random walk.
I'd note that outside of Bernie/Pete rising a bit and Biden falling after IA, which is in line with what you'd expect given the results there, none of the polling shifts in this primary have been super predictable.
Like if you predicted more than 1 or 2 of these, more power to you. I certainly didn't, and I don't think there was anything that intrinsically predictable about any of them. 
