In the following paper Introducing Physical Warp Drives by Alexey Bobrick, Gianni Martire they state
5.2. Constructing warp drives: Warp drives, being inertially moving shells of normal or exotic material, do not have any natural way of changing their velocities. They are just like any other types of inertially moving objects. Similarly, just like for any other massive objects, achieving a certain velocity for a warp drive requires an externally applied force or, more practically, some form of propulsion. Propulsion may be realized, for example, by an interaction with a bosonic field, or regular gaseous or plasma material
And
5.3. Finally, since all warp drive objects require propulsion in order to accelerate, any practical implementation of such objects would have to be asymmetric in shape, since the back part would have to accommodate a propellant exhaust system.
Is there anything wrong with those conclusions and has all this talk about Warp-drive been misleading since it seems normal propulsion is still required to move said warp-bubble?
