This could be a benefit depending on the textbook and the teacher. Most US High School history curriculums don't reference any original source material whatsoever, and most textbooks are watered down to cause as little controversy as possible in order to be marketable. At best, a student might be exposed to original sources in the course of writing an essay, if they don't simply take everything Wikipedia says for granted and copy the citations.
This could be a benefit depending on the textbook and the teacher. Most US High School history curriculums don't reference any original source material whatsoever, and most textbooks are watered down to cause as little controversy as possible in order to be marketable. At best, a student might be exposed to original sources in the course of writing an essay, if they don't simply take everything Wikipedia says for granted and copy the citations.