Thanks for the feedback.
1) That is expected behaviour, and no different from the other wire shortcut mods. I don't think it is a major problem since wires are very cheap and this method is very slow since you can only do it with one wire item at a time. Even SE has a similar infinite wire exploit where you can drop wires onto the ground from the navigation satellite, one at a time.
This could probably be prevented using the permissions system, but that would create some painful conflicts with Remote Configuration, which also uses the permissions system. I think this complexity is not worth it, but I'll consider it.
2) I'll have a look.