Agreed. But given what they're doing with their "operating system for the post-PC world", one can't help wondering if that is exactly what Microsoft thinks it means.
We're going to look at non touch-sensitive screens like relics of an old era.
If you buy that future, you may also come to the conclusion that your flagship OS and cash machine had better be ready for it. And, clearly the last few shots at making a windowed UI touch-enabled didn't go so well.
With that in mind, I submit that it's prudent to wait for the baby to stop moving before you throw it out with the bathwater.