Er...I have.
Unsurprisingly it would have made very little difference. Depending on which stages they would have called definite sprint stages and awarded the different points tally (I did it for stages 1,3,4,6,12,15,21) I get the following final totals for the top four:
Sagan 386 (-45)
Kristoff 265 (-17)
Kittel 238 (+16)
Cocquard 225 (-46)
So the only change in order is that Kittel leapfrogs Cocquard for third place. Sagan is still miles ahead and did not lose as many points as Cocquard.
It looks like one of those rule changes that no-one really thought through (like when F1 doubled the points for each position thinking it would reward the winner more). If the object is to stop it being a Sagan walkover, on this year's evidence, it won't work.