I don't think it has anything to do with allocation myself. I think the blaim lies at VW.de door.
Some people simply hit luckie and there build week was never moved, others thanks to the organisation at the factory

due i was told to introducing of new engines in the model range and also selling in new markets our build slots have moved a few times adding to our delays.
I also think number of options or what the options are have little to do with it if that was the case my low spec car would have been built first
