It's more vibrations or thumps that can cause a souffle to deflate. It's similar to the effect of shaking something to separate different particles. When you shake something with bubbles, the bubbles generally rise to the top, then pop.
Without the bubbles, all you have is pancake mix really.
I suppose if the music were really loud with sub woofers etc, that might cause enough vibration to ruin a souffle, if the floors were timber maybe? I know when I was a kid we had a wood floor, and if mum was making a sponge cake and we ran through the kitchen there'd be hell to pay.