Of course, if the state denies standing to the citizens then I suspect we will see two closely related issues of injustice will be seeking legal remedy. First, the denial of the right for citizens/society to represent their own interests; and second, the ability of the people to best value and decide by legislative and legislatively created legal means what moral standards are in their own best interests to value and promote.
That may be where the 9th is going with this. If there is no standing per the Calif SC then it is an new appelate issue. If there is standing then the merits can be decided.
Of course guidance means GUIDANCE and is not necessarily binding.
this could be a repetition but evading review issue.
also voters who pass laws the state gov opposes would never be able to have standing.