Parasound's Hint 6's new volume control provides huge sonic advances?


Promotional language for the (relatively) new HINT 6 says this: "New Burr-Brown Volume Control:
The Parasound HINT 6 is packed full of technical advancements. The new, upgraded volume control replaces the original model's motorized potentiometer and sliding mechanical contacts with a Burr-Brown electronically controlled analog resistor ladder volume control. Technical advancements in the new volume control offer a more distinct sound stage by increasing the dynamic range, lowering the noise floor, improving left-right separation and maintaining absolute left-right channel tracking at any volume level."

I'm not a skeptic, but am trying to learn.

QUESTION: How does a volume control affect so many elements important to the sound?

I almost never look to the details of how an amplifier's volume control is designed. Is it this important?
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It’s a good question. I do not have difficulty imagining that some devices attenuate signals more accurately than others and perhaps with less noise but how or why....who knows?
Thanks for the answers so far. I realize that attenuation must be done correctly, but I thought that would just be standard operating procedure for any amp costing $3k. The fact that Parasound is singling out this element of their design for special attention suggests that others don’t do it well enough or that Parasound  has now done it so well (compared to others) that it’s going to make a noticeable difference. I find either explanation to be pretty weak, and so there’s one more possibility, namely that their marketing people decided to tout an otherwise standard feature just to grab people’s attention. Not the kind of company I thought they were, and that's why I'm curious.
They are not the first to tout higher quality volume controls. Maybe it’s an improvement for their products. Don’t know.

I can vouch for the fact as likely could many that potentiometers in volume controls need to be kept clean else audible deterioration of the sound occurs so clearly volume controls matter.