It doesn't matter if the speech was changed. Folks will judge conservatives' stridency against the speech actually given. And we'll end up looking silly -- which, in politics, is a deadly disease.
Sorry, just see it completely differently.
Myself, and everybody I know who objected to the speech, couldn't care less about the content of the speech.
We objected to the idea that a politician should direct the government-run educational apparatus to force our children into being an unwilling audience for his speechifying.
He could have read Dr. Suess or the bible, it wouldn't have mattered to me. I don't want him talking to my child without my participation and agreement.
That was the what the controversy was, and is, about. It was never about content.