Key legal question
Whether the appeal in public law matters was admissible despite the immigration exception.
Extracted holding
The appeal was admissible because the appellant could plausibly invoke Art. 50(1)(b) LEtr at least for standing purposes.
Extracted reasoning
A defendable claim to remain in Switzerland under Art. 50(1)(b) LEtr suffices to pass the Art. 83(c)(2) LTF bar; whether the legal conditions are actually met is a merits question.