NO problem being away from the forum... go right ahead. 
Why should Piti and Purito want to gain time on Froome first? They were still in the race for the win, Valverde at least, Purito less, but looks like he doesn't really have it anyway this year, otherwise I'd expect him to come out ahead of Valverde yesterday. If you don't beat Contador, gaining time on Froome gives you second place. there's no point, Valverde isn't some second year pro for whom a Vuelta-podium is a great achievement. Go for the win, let Contador worry about Froome, try to get time on Contador. 100% the right thing by Valverde yesterday. Which isn't always the case, often he does refuse turns for no reason I understand really, not the case yesterday.