As a +10years Ruby dev, I don't see anything looking "pretty nice" about this, just yet another a new confusing way of achieving the same result, but differently.
This is another case: we had a way that requires a programmer to explicitly define what she is forwarding and where she is forwarding it to. And now we have a way that requires the reader of software to know the intricacies of the language in order to understand how the "magic" works.
I truly fail to see how this makes a language better.