But it actually produces more power and is more efficient, so the only thing you're losing is sound.
That seems fairly equivalent to gripes about water cooling to me.
I like the sound of the flat 6, but Jakes generation will grow to love the sound of the flat 4 turbo in 20 years when the 2017 718's are the 20 year old budget Porsche, and more and more cars make no sound at all due to being electric.