If the question is whether a preliminary injunction is appropriate, then yes. A preliminary injunction preserves the status quo while the case is decided. Since the the law plausibly infringes the plaintiffs’ first amendment rights, the proper judicial decision is to preserve the status quo. This is the general rule applied to all cases of this nature and should not be construed as evidence of bias by the judge.
Really, my point in commenting has more to do with calling out the AP for sensationalist reporting than with the merits of the case being reported on.