From a purely mechanical perspective, I think there needs to be some sort of driver break in after they roll off the assembly line. It’s a moving part, so it should have some level of controlled manipulation before pouring the coals to it or it will fail. That’s just common sense. I’m only guessing, but I would think that there is some sort of testing / QC for the drivers done at the factory. Or, the speaker manufacture does some testing at their factory.
I only say the above for reasons of concern over a failure if there is no sort of initial break in. It has nothing to do with sound quality.
