Sure it does. Before that, there was only a big big fire in the other building, and debris and bodies hurtling down at high speeds. The building was still standing, as advertised. They weren't anticipating a collapse. If they HAD, they would have ordered an evacuation.
After the second plane, both buildings were on fire and Tower 2 was in much more trouble than Tower 1, havng been hit much lower down. That's the reason it would have been the right thing to evacuate immediately. But that would require foreknowledge they didn't have. I'm sure SOME people in the city (architects and engineers) realized at once what was going to happen to the buildings after the planes hit, but I don't think it's reasonable to assume that the guys in the WTC command center did. That's all.
But, I'm sure we'll hear much more about it during the court cases.
Let's pray this doen't get to far out of hand. I've enjoyed the debate. BTW, your watercolors are excellent on your profile page!