If the city council and its staff really cared about trees, this would not have happened. Not surprised.

Being patient about trees.
Back in 1988 my wife and I moved into a rental house in the Shoreline West area. We planted a redwood tree in the back yard. It started out really tiny in a small pot from a local nursery. By the time we were able to buy a house of our own, it had grown to about 20 feet high.
We dug it up, yes, we were moving in the summer, and moved it ourselves to our newly purchased Rex Manor house and planted it in the back yard ourselves. Over the following months, we notice a little browning of the highest small branch. It seemed to be fine through the winter and early spring. That summer more of the redwood died. Eventually, there was nothing green left. We figured it was dead, but did not dig it up, we just left the main trunk up to where it did not just break off in our hands at about 4 feet remaining.
We just left it there and the next year, several side-shoots sprung up. Eventually, one of these shoots dominated the others and we cut away all the small ones and let the main one grow.
Today, that tree is maybe 24" in diameter, and stands far higher than we ever expected would be possible. We can still see the original trunk in the side of the new trunk.
Yes, we should have had the tree moved professionally, yes it would have been nice to be moving to our new house in the winter, but it survived and has thrived.
So, let's not declare a redwood tree dead until at least one or two summers have passed without any new green shoots letting us know it has recovered and still can inspire us.
OK?