I'm glad you said this, as I am planning on using this and was wondering how many others were going to. It can be over powered, but only if you use it correctly. When you are booby trapping it, don't be naive in thinking that you tap a button and it works, you are probably going to have to hold a button down for 5 seconds to plant it. Also, it can't be easy to rig a care package, as when someone see's a one, they all run towards it trying to capture it first. You need strategy with this perk, it's quite balanced if you think about it.
And that's why I like it.