True, it isn't, but it is an excersise in mental endurance.
I'm sure you know that now.
Anyways, I am not advocating just riding on the interstate. I assume that's obvious.
However, to the OP. The point of these examples is to show you that you really don't have much experience at all. Just because you have learned the basic operations of a motorcycle mean that you are ready for a 600.
There's a lot more to riding than just learning the controls.