This was the day after the Canucks clinched their berth, although IIRC it wasn't yet clear at this point who they would face in round 1, so the playoff schedule would not even have been drawn up by this point. And of course the planning for the fireworks would have begun well before it was finally announced on that day. But hey, why let the facts get in the way of a good conspiracy theory?
http://www.isri.org/news-publications/a ... T0Ro_D26ME
ISRI2015’s final night [Sat Apr 25] celebration will kick off at 6:30 p.m. with the lighting of the Olympic flame – the same flame that presided over Vancouver’s Winter Olympic Games in 2010. ...[P]repare for a memorable night of ... fireworks.