This is nothing new, fireworks have been banned in the city of Seattle since roughly the early 90's, the problem lies within the ability to effectively enforce this ban which I "believe" falls under Code 107-SE.
That said it would appear that perhaps, (perhaps) many folks this year especially on the westside are cognizant of just how detrimental an unregulated consumer explosive can be and the subsequent "damage" inflicted upon a neighborhood or even an entire community.
Neverminded the fact that one "errant" firework could lead to a huge fire that negatively impacts not only your "idiot" neighbor and his Murica' entitlement but the irreversible damage caused by such egregious behavior.
In any event, here's hoping no one loses their home, neighboring property or even a loss of life.
Celebrate safely and responsibly folks.