mahgister,
I am not sure why he does it, but delaying the possibility of return does make it less convenient and less likely to happen.
Any manufacturer has to find something to make her/his products stand out from the crowd. Cable burn-in may be one of those things. It may be a trouble to do it, but it is a part of the business.
It takes a lots of people at Coca-Cola to arrange for billboards, TV ads, etc. to make you feel connected to those smiling people drinking their Coca-Cola. It is a trouble, but they have been doing it for decades with one goal. To sell Coca-Cola.
It does help if manufacturer believes in what she/he sells so she/he may be more honestly enthusiastic about the product. If it were not about burn-in, what else would we be talking when mentioning Morrow cables? You see, even in these few posts, the hype and talk is about the burn-in. The story. The selling point.