Not looking for a ruling here more of an opinion as to the addition of a local rule where Tree Roots come into play and have the potential to cause injury and/or club damage.
Does your course choose to have a Local Rule for Tree Roots ?
Has it been considered and then denied ?
Here is the guidance for the Committee:
Decision 33-8/8 Local Rule Providing Relief from Tree Roots
Q. May a Committee make a Local Rule providing relief without penalty if a player's stroke is interfered with by exposed tree roots?
A. A Local Rule is authorized only if an abnormal condition exists. Generally, the existence of exposed tree roots is not abnormal. However, if the exposed tree roots are encroaching on to the fairway, a Committee would be authorized to make a Local Rule providing relief under Rule 25-1 for interference from exposed tree roots when a ball lies on a closely-mown area. The Committee may restrict relief to interference for the lie of ball and the area of intended swing.
Despite the official position, lots of clubs have 'tree root relief' and not just on fairways.
Old pine trees, in particular, often have exposed tree roots which are effective in stopping balls next to them and have high potential to cause injury from deflected balls, broken clubs, etc. should a player try to play it as it lies.
The official position is that one may take 'unplayable' relief, but most people would try to play their way out rather than accept a penalty.