As a result of tesseracting, Meg is sent to a different planet/world. She is also had to make very difficult decisions not only for her but for Calvin, Charles, and her father. I think that the way meg acts towards hr father was correct because she has waited so long to find him and the fact that her brother was in danger meant they had to risk much more than ever.
It is false that a major characteristic of poetry is the compression of images into the fewest number of words. You can be as wordy as you want, there is no limit of words you can use.