I'm not sure it's a great idea to get so focused at such an early age. There's a lot to learn about the world when you're 14, and it might be good to explore a wide range of topics. (I personally took most of my "real" classes in high school, so by the time I got to college, I had an idea of what I wanted to do. After going to college for a year, I realized my needs would not be met in that way. But deciding at 20 is…
Just because the school will focus on software engineering doesn't mean it will lack in other areas. I'm fairly certain I would have done better in math, for example, if the math courses were programming-oriented instead of pencil-and-paper oriented.
It's pretty specifically stated that this is not a vocational school.
A lot of classes can benefit from an injection of programming - a few off the top of my head include statistics, maths, physics...