Many small manufactures can’t afford to order much more than the MOQ on parts. PCBs generally have much higher MOQs than parts you can buy from digi key, I ran a manufacturing business fit years and a PCB MOQ could last me a whole year but I could say cash flow on buying the components more just in time. It’s not “poor planning” it’s working within the realities of your business and it’s limitations (and he’s saving a few hundred in a month at cash low could have been the difference between me just not taking a pay check that month or paying part of an employees wage from my own savings on top of not getting paid myself)