Sequel to precedent cited in Caldwell v. Caldwell is granted certiorari
Whether respondent has standing to maintain this action where he has no objection to the public display of a cross, but instead is offended that the public land on which the cross is located is not also an open forum on which other persons might display other symbols. -- from page 2 of PDF file
The issue of standing in Salazar v. Buono is discussed on pages 18-26 of the PDF file (pages 10-18 of the original document) of the above petition. IMO this discussion is applicable to Caldwell v. Caldwell.
One of the issues in Salazar v. Buono is whether "an Act of Congress directing the land be transferred to a private entity is a permissible accommodation." A similar question could be raised in Caldwell, i.e., would creation of a second UC website version with the offensive religious material removed be a permissible accommodation of the complaint.