Why do you say the ACLU is behind the Festivus setup? They aren't, so there obviously isn't any hypocrisy. Duh. Stop trying to justify special rights for Christianity.
Out of the three displays two have a religious significance. The ACLU chose to only object to the Christian display.
That's hypocrisy.
"Why do you say the ACLU is behind the Festivus setup?"
I saw nothing in the writer's post to suggest that it was an ACLU setup. He only pointed out an apparent ACLU inconsistency in objecting to one religious display but not to another. Could you explain your reason for interpreting the post as you did?