Not necessarily. Most venues find that allowing their guests to listen using headphones plugged into their smartphone or tablet reduces noise pollution for other guests.
But there are other uses for AudioFetch. If you would like to broadcast the same audio to a larger room or maybe have folks listen in from another nearby room, you can use Bluetooth speakers. It works similar to using headphones–simply download the AudioFetch app, connect to the local WiFi network, pair the device with the Bluetooth speaker, and start streaming!