It's just engine noise, not road noise. I believe the article stated that was one of the reasons they put in fake engine noise. All you could hear with a quiet engine is wind and road noise (which modern cars do a good job of keeping to a minimum... not sure why that's such an issue).
Me personally? It had better be able to be disabled. Maybe I'd turn it on once or twice a year. If it was real engine noise, maybe changing the pitch is acceptable as long as it's not too annoying (looking at you, Harley-Davidson and all the 4-cylinder Honda / Toyota / etc with fart cans attached).
A little snarl / rumble / rasp is fine, but you shouldn't be waking the neighborhood at 30% throttle. Just saying.