Charlottesville didn't deny the alt-right a permit. They denied them a permit in a particular park, which had a particular statue - but they denied it on the grounds that security would be difficult to arrange in the small park, and they granted them a permit in a larger, nearby park. The alt-right did in fact rally, and as the city predicted, there was an act of violence because of the crowded conditions, and someone died.
Both of these were tactical failures.
Which is to say, I don't think it's particularly easy to say that Ira Glasser-era ACLU was a great force for justice and Anthony Romero-era ACLU lost it. I'd argue that the ACLU made the same mistake, in the same context, both times. In neither case did they actually make it so someone could exercise their free speech rights. They just got lucky the first time that there were no obviously negative consequences to their action, and so they could engage in PR that they were the good guys. And the ACLU themselves bought into that PR, which kept them from realizing their mistake.
The article also makes this pretty wild assertion at the end:
> FIRE also discovered that female, LGBT, and Black students are less supportive of free speech than male, straight, Hispanic, Asian, and white students, a worrisome indication that the insidious effort to malign the entire concept of “free speech” as a weapon to “harm” minorities is bearing fruit. Rather than learning how the First Amendment has been a precondition for every social, political, legal, and cultural advancement secured by marginalized groups in America, it would tragically appear that indoctrinating the latter-day beneficiaries of these struggles in the belief that they are helpless against “oppressive structures” and “systems” has convinced many that free speech is their enemy.
Why is it taken as an obvious fact that said female, LGBT, and Black students are wrong about free speech? Why are they clearly indoctrinated? Why not ask them why they don't support it? Perhaps they have a well-considered opinion on the matter?