Hello Simon,
thank you for your comment on this behavior.
I will bring this questions to WebGUI team to consider mentioned change.
However, try to imagine another situation - SwiftUI is not mentioned only for single GE port APs and has wider span to i.e. NX5500E where six GE ports exists.
Addition, accidental, of unwanted VLANs could cause much more troubles (loops / floods) than the port down actually. To me this seems to be rather a prevention, yet annoying one 🙂
I will keep you posted about GUI team's comments if you wish.
Regards,
Ondrej