Kernrechtsfrage
Whether the appeal met the federal pleading requirements and could be supplemented after the deadline.
Extrahierter Entscheid
The submission did not sufficiently address the lower court's reasoning and could not be cured by granting an extra time limit; the appeal was therefore not admissible to that extent.
Extrahierte Begründung
Art. 42 BGG requires a targeted, reasoned challenge to the decisive findings. A later 'Nachfrist' cannot фактически extend the non-extendable filing deadline.