Maybe being able to pick any other company to make the plates? For god sake, it is just a plate. A simple piece of metal with some letters on it to make everyone happy with traceability.
Government contracts need to fulfill very specific rules to prevent conflicts of interest. This one company one that bid and is now responsible for that. If you want it any other way, the law needs to be changed and that is again a democratic process.
You realise, of course, that if another company was able to deliver the plates, the same issue would still be occuring thanks to Swedish unions being in solidarity?