Me third, keep it on. As the root ball swells in the coming weeks it'll rip right through that mesh like it was never there. Roots can have a lot of force, tree root lift slabs of concrete and break foundations. Mary Jane is no different, just with much smaller roots. It might not break a foundation, but it will indeed bust through that mesh very easily. Plus the mesh helps hold the roots in place, minimizing the stress upon transplant.