The only thing I agree with is that this school isn't doing a good job of educating if the student says "Memorization, not rationalization". While the homework appears to be monotonous my understanding was that this is because she is 13, it is important to build the foundation (i.e. comfort with numbers and reading dense literature) that will allow her to pursue more intellectually challenging courses in the future.
The only criticism I have of this system is that the author suggests none of the courses promote critical thinking and creativity. If this is the case then this is a problem, I would think at least 1/5 courses should do that. One of the biggest criticisms of the education system in China (I don't know if this is true but I hear it a lot) is that it promotes rote memorization (with exceptions), and this school appears to be doing the same.
Edit: All of this is predicated on the assumption that this student is academically capable of succeeding at this school. While it takes her 3 hours every night (5 hours max) this may not be the case for the average student, we don't know where she lies on the curve. Anecdotal evidence from some parents is obviously not enough to draw any conclusions.