It sadly does not mean that universities are laser-focused on seeking truth, and are free from ideological biases, often very obvious. Regarding truth, one of the leading theories in humanities is that of Michel Foucault, which states that there cannot be any objective truth, and what is considered true is determined by power structures.
I'm glad to see though that the four universities are making a stand, and value independence above whatever "federal benefits" the administration may offer. It's sad that these are only 4 out of 9.