You responded perfectly.

However.

Robert Mackey, Lieutenant Colonel, U.S. Army (Retired), made an excellent point this past week in HuffPo writing about the Flotilla killings on the high seas.

The preamble:
"Recently, I read Ben MacIntyre's new book Operation Mincemeat, the story of how the British used a dead body to fool the Germans as part of a great deception plan -- to convince Hitler that the Allies would land in Greece and Sardinia, not Sicily, in 1943. What has this to do with what happened this weekend? ... As a retired US Army officer and former strategic war planner, I sat down with my military planner's hat on and made a bulleted list about this act of war. Enjoy."

The point Mackey made that I think applies equally to WTC. A former 911 Commission head now feels the same way, a few years out:
"When you see a detailed multi-page report ready to go within an hour or two of an insanely chaotic military action (of any kind), it is bullshit, plain and clear. Just try reading reports about the Normandy invasion in history books in 2010. Now imagine trying to read the same level of detail, etc. a few hours after the first wave hit the beaches. You get my point."

Al-Qaeda was bulls-eyed and all hijackers locked-and-loaded by 11:30 AM PST, on September 11, 2001. If I remember correctly, Rumsfeld had even thrown in a little Saddam Hussein to internationalize the pot by 2 PM EST, according to his notes. Didn't seem to matter that the BBC located seven of the hijackers alive by September 21, nor that firemen were taped reporting to dispatch from the floor of the fires one minute before the overwhelming heat of this supposed fire melted the South Tower. Then, there's WTC-7, which self-combusted in 8 seconds — straight down — at 5:20 PM EST the same day.

I and many other are still waiting to find out who was behind it. I don't have 'stupid' stamped on my forehead, and can hold conflicting thoughts in my head without the need for immediate resolution. But I won't be bamboozled or intimidated into ignoring basic laws of physics no matter what the sick need to impugn an entire race or religion.

You have books to sell, and your prose to protect. You wrote an excellent response, and had no other choice, given the ptolemaic nature of the unresolved issue. You flattered your plainly amateur reviewers with your care about what they thought, and I think that's what matters most. There is no rule: you did the right thing.