The story accompanying this video - as first posted at
www.liveleak.com claims that several calls had been made to 911. When questioned afterwards, the call center claimed that they did not dispatch fire trucks to 'arcing power line' calls, just notified the PoCo. It seems none of the callers actually said "there are flames," so there was no fire department response.
Hopping into the 'wayback' machine, to a time before the fire ... On a calm day I would not have thought the tree was a threat to the lines. I've certainly seen much worse.
I had a service change where my first thought was 'that tree is a problem.' To give you an idea, here is the tree after trimming. Note how close it is to the pole:
The trimming crew had to leave one log behind. Note how the tree grew around the guy wire:
Finally, cheerfully stolen from another site, here is a pic of an ugly, but safely trimmed tree: