point of law
"So in a case in which plaintiffs lack standing (a jurisdictional defect) *and* have no viable claim on the merits, a federal court has no discretion to actually hold that there’s no merit; it *must* dismiss for lack of standing—or else it’s committing reversible error."
Re: point of law
The only place where a decision isn't reversible is at SCOTUS.
Which is what makes it so darn important.
You can't even remove them other than for personal perfidy, corruption etc.
I guess CJ Roberts killing Scalia* would be enough.
*modeled on when Cruz' Dad killed JFK.