Obviously it isn’t 
Obviously, this solution relies on making a new parent (herein called ‘anchor’).
The ‘anchor’ (new transform node root for the model) has its handles in the center of the object. The object root hierarchy is displaced towards the new root.
For the convenience of others looking at the same topic, let me link this to your other thread in which people will find a solution to actually move the pivot on the root object itself (without reparenting to new). Eventually also keeping with the original position and scale of the imported object/mesh.