The article explains that it doesn't have power to turn on "tow mode" - so the wheels remain engaged to the now dead electrical system, effectively locking them in place.
Additionally. Do we know that it is actually impossible to engage tow mode while plugged in? That still doesn't solve all cases of having to manually move it.
Which is actually an amusing thought. Perhaps they could ship them with really long extension chords, just enough for a city-commute...
Also, it'd be neat if you could attach to the wires for buses that are in many major cities.
My car is old Saab and there are places to move aside bits of trim to manually operate the sunroof and fuel tank cover if the battery is completely gone.