In theory, I see nothing wrong with knowing what you want. Yet, so many people have issues with that. When I taught, I was on the admissions committee, and I interviewed potential students. I would always ask them "what kind of nurse do you picture yourself becoming/where do you see yourself working?" I think it is a great motivation tool. I would also ask students who were failing/struggling that question. Again, motivation. People can (and often do) change their minds, things stand in our way, or experiences steer us away from certain specialties (or draw us more towards the specialty), or just lack of an offer can make us rethink our decision. And all of this is okay. BUT, I don't think it's fair to say that a person is being closed minded because they already know what they want to do. However, open minds yield more opportunities in the end. I've never been one to put all my eggs in one basket.
My thoughts about this specific post, and the OP was "okay, it's her decision. If she doesn't get her dream job in the NICU right out of school, she'll do something else to pay the bills. Things happen for a reason, they don't always go the way we plan. It's really not our problem, or concern, right?
And as an educator, I figured she'll do what she has to do to get through nursing school, and get through the 90-95% adult rotations (where I used to teach, my students had 4 peds days at best, and about the same (maybe 6) OB days (and no NICU, unless it was an observation day in either Peds or OB if the prof was willing to send you and the unit was willing to take you). I thought, clearly, she'll be professional enough, and understand the importance of it. Then I read this:
Yikes. That's really all I can say.