If the plaintiff doesn't have standing then how can their case have any merit?
I think you have an idea but you like being the provocateur.
But here it is anyway.
Meritorious law - A case taken by the court on legal arguments by citing statutes and authority, and if where the defendant wins the case based on their argument against the claim, then the case may be considered meritless.
Standing - the plaintiff has to show damage or being an injured party for the court to take action, to hear the merits of the case.