I rant every time this comes up. I've cancelled solely because of this annoying feature. The Amazon Video app on my Roku may not be as slick, but at least it doesn't force me to mute my TV when I'm browsing through the selections.
I bet they A/B tested that feature and decided users loved it because their metrics did not reveal how many users were muting their televisions. Maybe on Smart TVs they know, but perhaps not if that smart TV is hooked up to an external sound system.
