I love the innovation coming out of this.
Right now, I don't quite see why we need a general LN wrapper running on nostr, but it is definitely intellectually satisfying and I do hope people build on that.
In fact when your lightning node is hosted at home, when you want to connect it to an app on clearnet like lnbits, satdress etc... You need to use a VPN connection or open some port on your router.
Nostr is used to create an asynchronous and bidirectional channel. Much more, you can use the wrapper with a lot of app (need some integration) with tightly coupled scheme.