When a reader examines Utopia and then gives an opinion about it, the reader is critiquing the text.
When providing an opinion regarding to a particular topic, it is a requierement to be informed about the subject and provide their unique interpretation and point of view pertaining to the subject matter, in this case, Utopia.
The word "critique" stems from the word "critiscism", which means is "the act or art of analyzing and evaluating or judging the quality of a literary or artistic work, musical performance, art exhibit, dramatic production, etc. "