What is required is a balanced perspective, and a balanced set of criteria by which we evaluate our efforts.
Yes, a balance is necessary. In my mobile learning class, we discussed how can we use mobile devices to increase engagement, yet keep them focused on how to leverage technology well for academic purposes.
I agree with the Constructivists in allowing individual flexibility, but there also has to be structure, discipline, and an overall plan or process to evaluate learning and ensure that learners are achieving the desired outcomes.