This race didn't tell me a lot about how the Tour will unfold. Sure, under normal circumstances, Pog and Ving are a step above but we already knew that and these aren't normal circumstances. We could see Pog start strong and fade in the final week. Ving may not even start and who knows what kind of form he'll have if he does. He could struggle early and come good later in the race when it's too late. Rog and Remco both crashed (Rog twice) and are peaking for a few weeks from now so I have no doubt both will improve.
I really have no idea how it's going to play out. All of the crashes this year and Pog's Giro decision really have thrown everthing into chaos. You'd still have to assume that someone from that foursome will win but I would not be completely shocked if there was a surprise winner with the way this year has unfolded. All I can say for certain is it will be a "what if" year no matter who wins.