Or possibly because it's a new concept, which takes more text to describe. More text than what can be included above the fold, and more than what most people read attentively these days.

After all, it's an 8-week intensive course, mostly for CS grads, that grills you hard, and is not cheap. As a consumer hence, I'd highly prefer to talk with someone. Not to mention, all educational institutes have an enrollment process that needs you to talk to a human.

At some point, when it becomes more common and well-accepted, we will condense it, but it feels a little too early to do so.