Have they ever DRIVEN an electric bike?
When I test rode one, I found it to be totally different than watching it being driven without sound.
While I'm not at all a fan of straight pipes on a hog, I do like a tamed rumble from a well-tuned exhaust. So I was surprised at my own reaction when I actually twisted the throttle and glided out onto the street and rode at 30 mph and could hear the tire rubber on the asphalt as I leaned into a turn. I liked it! It really matched my childhood fantasy of flying on a magic carpet.
Yes, I still thrill to the sound of a V12 Ferrari, but for driving every day, I'll take magic.
The ONLY time I want loud pipes is when I'm splitting lanes on the freeway, for I've found no good way to let cagers know I'm there. Lights don't work and it's rude to honk or kick fenders. So maybe a good sound system, but it'd have to be a heck of an amp to get through the glass, metal, and then overcome the JBL/Kappa/Mark Levinson/Bose/THX-certified premium sound system inside the cage.