Are learning by reading from a textbook compared to listening to lectures different roads to same goal
You are operating on the false assumption that class time equates to "lecture". There are other things to do with class time, which may be valuable to the book-learner.

In the lecture-based undergrad classes I teach, I do not take attendance (which becomes impractical anyway as class sizes increase). Students are paying for my time, and they can do with it what they want. They have assignments that need to be completed by certain due dates - some online and some that need to be submitted in class. If they are earning good grades, I let them do whatever. If they are doing poorly, I intervene, but one-on-one.

If the course in question is discussion- or activity-based, then the students should not be excused. These types of courses are not content-based (think General Chemistry), but issue-based (Racial Inequality in American Politics) or skill-based (Introduction to Public Speaking). Again, I would not take attendance, but a majority of the students' grades will be for in-class activities - discussions about case studies or issues, group presentations, individual presentations, peer-lead team learning, active and hands-on learning, demonstrations by students, etc. In these cases the student is heavily penalized by not attending class. In the class on public speaking, perhaps each student is graded as follows: 1) three short in-class oral presentations (20% of the overall grade each); 2) a written critical reflection on their presentations as a final paper (20% of the final grade total); and 3) critical analysis of presentations made by 2 classmates (10% of the final grade each). This student needs to be in class, or he/she will be unable to do 100% of the graded work!

In all cases I firmly believe in placing the responsibility on the student. Just as the student needs to be responsible for the assignments, for studying, and ultimately for earning the final grade, the student needs to be responsible for the decision to come to class. If the student wants to skip class, the student can skip as long as the student knows that there will be real (missed assignments) and implied penalties (missed opportunities to comprehend the material better). The instructor's responsibility is not to ensure that students learn. It is to create an environment where learning can happen and to provide guidance and feedback about how successful that learning is.