Questão jurídica principal
Whether the cantonal decision was an appealable interlocutory decision causing irreparable disadvantage to the insurer.
Decisão extraída
Yes. The cantonal ruling was a preliminary decision on a key prerequisite of liability, and the insurer could suffer an irreparable legal disadvantage if forced to issue a potentially unlawful benefits decision.
Fundamentação extraída
Under Art. 93 BGG, a decision that resolves only one cumulative prerequisite and compels a potentially unlawful merits decision is appealable because the administration would otherwise be unable to correct the issue later.