The CAKE tires; Trail Savers have a number of reasons to them. First of all they are designed to reduce the footprint, decreasing the level of tear, while out riding.
They are built to fit specifically developed 24” rims by CAKE, to support torque.
Moreover, the wheel including rim and tire is inspired by MTB wheels (magnified and reinforced) vs motorcycle wheels, to serve for easy change, dealing with flats or replacing tires.
The relatively narrow tires at 3.25 are engineered to balance the aspects of off-road purpose and reducing rolling resistance for battery endurance.