I think people are seriously underestimating the protocol involved and understanding that protocol is required if you want to build your own transducers compatible streaming, which is always useful. There's also the issue that the protocol in question may not be generic enough. From the presentations I've seen it claims that it might work with Rx streams as well, however I don't think it can deal with back-pressure. This is just a personal opinion and I'd like to be proven wrong.

That said the concept is pretty cool and we shouldn't fear learning new things. After all, the whole point of learning a new programming language is to be exposed to new ways of solving problems, otherwise why bother?