Supervised pacing is one of the smartest things you can build into instruction. A certain amount of self-pacing is good at the right time, but students need guidance, and instructors should have the kind of credentials that make them necessary to optimal learning.
As time goes by, students who are faithful to the supervised learning process are able to tell when they need to pace themselves in certain areas. However, the farther they go into the learning, the more new things they run into that require a supervised pace. Students need both a supervised pace and a self pace.
Designing supervised pacing requires a lot of skill, but most people think self-pacing is a glorious indication of high quality. A well designed supervised pace will yield wonderful results that self-pacing can never deliver.