"It is a tremendous advantage to explore your organization fully."

This hasn't been my experience. I've moved around a lot and have exposure to many aspects of the business and how things operate. I'm 10 years in and still a midlevel. Being more linear would have resulted in faster promotions.

"You can literally write your own ticket."

Not in many large orgs. Poking your nose in other areas is a good way to get your hand slapped.