Yeah... one has to wonder what would have changed... but if you get confusing time gaps maybe you shouldn't trust them... and sent someone back to the team car... also I think there was still not a coordinated chase and in the end Kiesenhofer had 1.15...
Well, it sure was the result of many factors coming together. But for me one of the main mistake was that the Dutch didn't really take the race into their hands. If you have four! of the biggest favourites and no other team comes remotely close, you should take that responsibility, keep the break in check, get rid of most of your competitors, and not look and wait and act a bit and then not anymore...
In the end, since only van Vleuten was really there in the end, maybe the legs of the Dutch weren't really there and they felt worse than they had thought themselves and that made them quite passive.