Kernrechtsfrage
Whether the cantonal court could refuse to set a deadline to cure the deficient appeal reasoning because counsel acted abusively.
Extrahierter Entscheid
The court should have granted a deadline to supplement the appeal; counsel's conduct was not abusive on the concrete facts.
Extrahierte Begründung
For a merely summarised or absent reasoning, the same rule applies: either a cure period must be set under Art. 61 lit. b ATSG, or exceptional abuse of rights exists. Here counsel requested the file early, was not shown to have received it, and filing a protective appeal on the last day was a diligent response rather than abuse.