Not sure I'm seeing this massive improvement in Cunego. There's only really 2010 that was a down year for him, the rest of the time he's where he's always been, except for in 2004 when he's all but told us he was doping. And in 2009, when the none-too-subtle points about Life's classifications and Danilo di Luca come from, he scored more CQ points than in his renaissance of 2011, and last year was his second lowest score ever. As he's become more able to pick up lower end top 10 placings in GTs and compete for the win over a week again, so his performance in one-day races has dropped away and his placements in the hilly Classics have fallen away. Also worth considering that this last three years or so ought to have been his physical peak had he followed a "normal" career path.
CQ scores from Il Piccolo Principe:
2004: 2260
2005: 1266
2006: 1388
2007: 1435
2008: 1800
2009: 1291
2010: 673
2011: 1210
2012: 917
Also, the blog entry did say that we could probably guess who it was, which would draw one's attention to somebody who's been off the road (eg Menchov), who's already notorious as a doper (di Luca, Scarponi, Valverde) or whose performances fluctuate wildly or have risen seemingly unnaturally (Cobo, Wiggins). The blog has included ambiguity aimed at minor levels of misdirection before, but I'd say of the active GT winners, Cunego would be one of the last ones that would come to my mind when they talk of it being somebody that we could all guess was doping.