Why wouldn't an, for example, amplifier work to manufacturer's specification once received straight from the factory? Ties, rods, rings, whatever else, in place as manufacturer left it. I am not talking about some packaging material, but about a finished product taken out of the box? Why shouldn't we expect that manufacturer, when tweaking and finalizing before releasing to the market, is testing the product as customers would use it? In fact, why would not manufacturer do it? I have a hard time believing that someone engineers a half-baked product and never pays attention to how it sounds when finished? I am sure it is possible, but why would anyone put time and effort into engineering something that she/he would not adjust as the finalized product? Regardless of personal opinion what does or does not sound "better" (tied or untied, etc.). Or, did I completely misunderstand your post, which is also very likely?
If it is only about removing vs. not removing shipping material (as it seems is the case in your example), why would anyone not remove it? Even if you forget the sound, which may or may not be different to someone's liking, the machine would not look the same as what you envisioned when parting with money.
When you have too many parts too close together the parts are not able to perform at their spec. This actually causes blockage of the audio signal and makes the soundstage start to collapse or get congested sounding.
This is an interesting one. It seems that when parts inside some equipment get congested (capacitors etc. closer together), the virtual image of the performance, as heard from your listening position, also gets congested (musicians closer together). Serendipity at work? It would be interesting to know why would that happen just like that. I do not doubt many things (including this) can happen and that is why there are good audio equipment engineers out there who think of all the details, but this one is, kind of, funny. Almost makes me think that, if amplifier is turned to one of its sides, I should expect to hear a cellist sitting on top of a violinist.

