Questão jurídica principal
Whether the taxpayers' federal appeal complied with the duty to reason under Art. 42 BGG.
Decisão extraída
No. The filing did not address the decisive grounds of the cantonal judgment in a targeted way and was therefore manifestly insufficiently reasoned.
Fundamentação extraída
An appeal must specifically engage with the reasoning that determines the result of the challenged decision. The submission failed to do so, so the Court could not examine the merits.