This is valuable to the health of your tree because it:
Root flare buried & Mulch piled high up against the trunk.
Mounding, known as “volcano mulching” is detrimental.
Root flare visible at the base of the tree & Mulch extends to dripline of canopy.
Volcano mulching your tree is a detriment to its health because it puts a constricting layer of mulch buried up around the flare and trunk.