Fourier said:
Does the fact that the stage doesn't finish at the summit of the Mortirolo take away some of it's relevance. Think Tourmalet TDF09.
Once the riders had summited the Tourmalet, it was downhill pretty much the entire way into the stage finish, the last 30 km or so was a dead-straight road descending at maybe 1%.
Looking at today's profile the climb to the finish starts immediately after the steep descent off the Mortirolo. No time for the peloton to reassemble.
The other thing to keep in mind is that the Mortirolo is a much steeper climb than the Tourmalet. You can't wheelsuck at all on the steep bits of the Mortirolo. You can on much of the Tourmalet, if you're a world-class climber riding with other world-class climbers.