As an LHP occultist would walking the tree of life be of any use to climb? And if so in what way(s)?

The Sephiroth offers wisdom like the Qliphoth but it’s based on different concepts. An example is Kether and Thuamel; the Qlipha represents duality of the world and spirit but the Spheria represents unity and invisibility. Both are abstract but they offer the same thing; crowned enlightenment about the universe. Also the “false” shell (Daath) exists on both the Tree of Life and Tree of Shadow. So you can get something from it but it’s up to you how useful it’ll be.