Dp, I didn't see her earlier blog, so I can't really comment upon it, but I work with many high school seniors whose mindset vacillates wildly from September to May, so I don't know that she's necessarily disingenuous but instead processing her thoughts out loud to a wide audience.
Post from February 3, 2012:
"Then there’s the University of Minnesota. Obviously, this school makes the most monetary sense, and it’s also where I want to attend vet school. However, I was on the campus last Friday night for a swim meet, walking with my friend, and I simply commented 'I could go here.' She turned, stared at me, and said, 'That’s it?'
I had spoken in my flattest monotone, almost disbelieving that this school was an option. I feel no excitement about the University of Minnesota, only the logical compulsion that I should attend."
Roughly six weeks later, from March 21, 2012, the post that you referenced in the OP:
"I have talked on the phone with and toured the University of Minnesota more times than I can count, and each time I go back, I am astounded by what the school has to offer. The slogan 'driven to discover' truly encompasses the whole university. It has an extensive honors program, complete with optional housing and mandatory advisers. Minnesota spends more than $600 million every year on research, and I have a guaranteed spot as a freshman in a lab. It has the Mayo Clinic on campus, which is world renowned. Even the study-abroad program is ranked in the top three in the country. I look at this list of accomplishments, and wonder, what more can an Ivy League school offer me?"
I guess the lesson for her here is don't say things that are difficult/impossible to take back, especially when your audience is potentially every person on Earth with internet access.