I, too, had flash backs to 9/11.
I have never trusted these tower blocks with central core fire escapes. In the 1960s I worked on the 1st floor of such a block, a fire started at the exit of the fire escape, where someone had piled rubbish and someone else thought it 'funny' to set on fire, so it couldn't be used. With no power or safety lighting to the adjacent main staircase, someone in a wheeelchair had to be carried down it from the 11th floor.
Thankfully, I was off sick that date, but since then I have never accepted nor believed that these blocks are not a fire risk and there have been enough incidents, with fatalities in several different blocks to show that to be true.