bugmenot Why do you ask, "ever going to get integrated"? Has Pi-hole ever been in a to-do list in MoodleBox?
Irrespective of that, Pi-hole is a clever thing, and well-maintained - it needs these blacklists for the best effect. Without knowing inside, I guess Pi-hole can either extend or replace the DNS in the MoodleBox, without any collisions.
The only question is the need: MoodleBox is primarily meant as internetless server, it serves the content loaded in to it, the LMS Moodle but can be extended. So tracking is not topic at all, you control what you load in to it.
A note to the MoodleBox community: Add this no tracking thing to its list of advantages!