The route this year was not by any way a good design. Of course it was much worse than anticipated, but it could have been much better with a good route design.The "entertainment" potential of any GT is unpredictable. That is why designing a great route on paper sometimes does not deliver because along the way riders get hill, crash, or whatever is left is too close.
In most cases it is really predictable which stages that have the potential to be not only good, but great. Mortirolo-Aprica will deliver certainly 9 out of 10 times. A 8 km, 10 % MTF will deliver in a far lower percentage of the time.