Question juridique clé
Whether the federal appeal met the reasoning requirements of Art. 42 LTF for a decision with multiple independent grounds.
Solution extraite
The appeal failed because it did not challenge the cantonal court's alternative merits reasoning on the objection deadline.
Motifs extraits
When a decision rests on several independent grounds, each sufficient to support the result, the appellant must attack each ground; otherwise the Federal Supreme Court will not examine the unchallenged basis.