Dear Avram,
“…you have embraced spiritual stagnation?”
No! I’m not Chabad at all. The way Chabad works, is that all fields of inquiry are open. Except for why Chabad is Chabad. Why Chabad does not have a track with zero kabalistic teachings, is a good question that will not get a good answer. For comparison; why Lakewood does not have a Mesivta for smart boys that will not be long-term learners, is also a good question that will not get an answer. Some things just are a certain way. These things only change as part of a large-scale shift.