Personally, I like it when people stand up and announce their idiocy. Saves me the trouble of figuring out whether or not their opinions are worth paying attention to.
I'm entitled to my opinion.
You're entitled to your opinion.
Rosie is entitled to her opinion.
But, given her position, Rosie is selling her opinion. Of course she can do that. But it makes sense for reasonable people to contact her employer and her sponosrs and say "I ain't buying any more of that crap."
When she's unemployed, she will still be entitled to her opinion. I just want to take away her soapbox. The Constitution doesn't guarantee her an extra-large soapbox.
Rosie's contention that only demolition charges could make a building implode are also false. A building being constructed by the lift-slab technique fell just the same way. In fact, the buildings would need some reason not to fall straight down as gravity works even in lower Manahattan.
If Rosie is going to offer an opinion based on demonstrably false premises, then we are free to conclude she's an idiot. Exhaustive research has been done on the collapse of the buildings at the WTC. It is infinitely more applicable to the real world than the whacko ramblings of Rosie.