There is a difference between the ACLU joining the case and the Kansas school board seeking out an alliance with Islamic clerics because of their success in getting ID taught in fundamentalist Islamic schools.
Furthermore, I don't recall anybody cheering the election of democrats to the Dover school boards. IIRC, there was more jeering than cheering. They tried to cram religion down the throats of other people's kids and every one of them got beat at election time. That they got beat by democrats, well, that's what happens when republicans try to violate the first amendment.
They were actually four Democrats and four Republicans. They ran on the Deomcrat ticket because the Republican ticket was all clogged up with creationists.