I’m not sure I follow what is “highly optimistic”?
Taken at face value, the logistics company wants or needs batches of 200 boxes at a time (I gave one reason based on experience why this might be). Regardless, Pimax have a choke point in the chain/processes between the factory/assembly line and their customers, as they need to assemble and box 200 units, before they can send them out the door. Simple arithmetic will therefore dictate the frequency of batches shipped. For example 50 units a day = 4 days between batches.
I expect the headsets that have already been delivered were “hand dispatched” using “consumer” shipping methods. Volume production and logistics doesn’t work like that and once the products leave Pimax’s premises, its largely out of their hands and under the control of their shipping partner.
I would not be surprised to learn that Pimax are experiencing some growth and ramp up pains, probably tied to how much they risk in terms of signing deals with partners to get the best prices, which will either mean committing to high volumes of parts or long periods of time in their contracts. ~6000 units sounds like a lot, but its not really (the boxed software industry used to work on production batches of 40,000) and there is high risk in projecting future volumes before you go full retail and those projections will dictate the contracts you enter into - too much and you have wasted unsold product/stock, too little and your market or supply chain starves because you can’t deliver…also consider that the margins on hardware are razor thin, so getting it wrong can be financially ruinous. The 200 unit batch size will just be one of the contracts involved.
The point of course is that most consumers only ever see the delivery driver, when there can be hundreds, if not thousands of steps in processes that have to execute, before they get their goods. I doubt many on the forum care beyond their own delivery, but Googling either Lean Manufacturing or Six Sigma can be revealing (the latter isn’t a star system name ).