There may be people in those buildings.
That is my worry. The water is pretty polluted, so will the fire be able to continue spreading. And we have seen the pics of people still in apartment buildings with the "Help Us" signs.
I hate to say it, but it's too bad. There's nothing anyone can do about it.
This is triage. Save what you can, try to make those you can't save right away as comfortable as possible, and don't waste resources on what you have no chance in hell of saving.
It's cold, but it's the only way to deal with these problems.