Does the failure of proof test apply to a defendant who succeeded at trial in spite of insufficient evidence?

"But this test is typically implicated when a defendant contends that the plaintiff succeeded at trial in spite of insufficient evidence. In the case where the trier of fact has expressly or implicitly concluded that the party with the burden of proof did not carry the burden and that party appeals, it is misleading to characterize the failure-of-proof issue as whether substantial evidence supports the judgment. This follows because such a characterization is conceptually one that allows an attack on (1) the evidence supporting the party who had no burden of proof, and (2) the trier of fact's unassailable conclusion that the party with the burden did not prove one or more elements of the case . . . . [] Thus, where the issue on appeal turns on a failure of proof at trial, the question for a reviewing court becomes whether the evidence compels a finding in favor of the appellant as a matter of law. [Citations.] Specifically, the question becomes whether the appellant's evidence was (1) 'uncontradicted and unimpeached' and (2) 'of such a character and weight as to leave no room for a judicial determination that it was insufficient to support a finding.' " (In re I.W. (2009) 180 Cal.App.4th 1517, 1528; accord, Valero v. Board of Retirement of Tulare County Employees' Retirement Assn. (2012) 205 Cal.App.4th 960, 966.)