Given that wiggins seemed to be in difficulties prior to the descent, I found it surprising that they had both Colombians help limit the damage. I don't know if there were others caught out who could have kept a pursuing group going as fast as possible I.e. to not only rely on sky help. On the other hand, if its wiggins to lead, then obviously there is an equally compelling reason to have the henuran work for him no matter what.
It remains to be seen how well wiggins communicated with his team, especially since at times he looked frustrated and, mentally, in trouble. And how well he communicated with his team how he was feeling (from the start as well as during this stage)- if he felt confident from the start of the giro that he could perform at the highest level. So far, he doesn't look like a winner.