imagine one of your "branch", with abit of weight, dropped from certain height.
And just so coincidence, the pointed part hit the base 1st.
Perhaps, nothing will happen now, but if murphy struck twice and another drop hit the same spot?
This is the same as having eggcrates covered with sands laid at the bottom base to act a medium to protect your base.
Just my thoughts...for your reference.
IMO, your tree will look more like a tree, with some "roots" surfaced from the "ground".