Not in GTs, but they did have some results in shorter stage races to point to, which Froome did not. Froome was so out of left field it was incredible. Fuglsang had at least climbed with the best at the '09 Dauphiné, whereas Kessiakoff had just won the Österreichrundfahrt against an OK but not stellar field. Froome had not shown anything like this. Fuglsang, Kessiakoff and Martin were all riders that people had shown an interest in how they could go, meaning there was some expectation that they might be good. If you were there commenting on what Chris Froome could potentially do, then by all means point me to those posts. But I don't recall anybody stating that Froome was a possibility for a top 10, even top 20 until after the Covatilla stage. There was nothing distinguishing his prospects as a stage racer from those of Miguel Minguez, Mathieu Perget and Francis de Greef, and less than Kevin de Weert, Kevin Seeldraeyers or Jan Bakelandts.
Chris Froome in the Vuelta was easily the biggest shock performance of the season.