@gs5556 The analogy with tires is actually a pretty good one since all new cars come with tires selected by the manufacturer. That's the way they get reviewed and tested too. I get it that then you can also opt for "hi-performance" or longer life tires, but, unlike audio cables there is a ton of objective data to help you make a rational choice. Same goes for the fuel, we do have octane ratings after all.
I have heard and read enough high end designers on the record talking about the complex and sophisticated physics and engineering that they employ in deciding how things get chosen inside the unit. I strongly suspect they could make similar information available to use consumers to help us make more informed decisions about the relatively simple connectors for these units. However I also am aware there is a VERY lucrative niche industry that likes the status quo.