Hmmm... the CNN article I read said that the club owner categorically denies being informed of Great White's intended use of pyrotechnics, let alone giving permission, and that a club owner in New Jersey has come forward saying that Great White triggered fireworks at his club earlier in the tour, again without seeking permission.
Also, the club had recently been inspected for violation of fire safety regulations. Minor violations were found, and subsequently corrected. The building was therefore officially safe, assuming no-one did anything dumb like, say, set off fireworks in a room insulated with styrofoam.
It's looking like it was Great White's fault to me, but of course I could be wrong...