You know, I could think of worse things a pub can do.
I've done a good bit of djing in my time, and do like music in a pub, when it's done right. The trick is to get the balance right, and particularly the volume. I don't want to make this into a 'have a go at the B&C' thread, but to take it as an example, I've been upstairs before when there were only a couple of tables of people, perhaps a dozen over all, and the djs were blaring out the music. At times like that what's required is some good background music. Then, on busier times, the music can increase in volume, in proportion to the amount of people, but never becoming excessive.
Most of my djing was done in a pub on a Saturday night from 9-1pm, so you usually got the full range, from empty to full (usually several times a night). I was constantly adjusting the volume, and taking several trips up and down the bar ("mingling") to check the volume was ok. The speakers at the far end were also turned off, to give people a quiet corner to chat.
The problem I often come across now is some guy/girl is trying to be noticed, and sticks the volume up to ten for the night.
Of course there are times when a quiet pub, and a good chat is what's preferred.