I’ve trashed that former branch and made the new one instead for the reasons already mentioned. As soon as it’s stable enough, I’ll merge it with the main branch.
You cerntainly can be of help and the more people test it and report, the more I can do. Unless someone generously donates a more recent NVIDIA board for my PC or I magically get hit by a pot of gold, that’s the only option we have right now actually. 
Just coming from the Unity world, I can say that Unreal actually has a by far more robust plugin system in comparison. Try to view it like that: The gameworks integrations are more of a proof of concept and are meant to be a good starting point for your own integration work (plus the usual marketing tidbit) than a fully featured and supported integration. So mainly it’s just nice of the NVIDIA guys to provide it so we don’t have to start from scratch. It’s a nice gesture, what we make of it is up to us. Bigger teams and can afford someone that will work on it fulltime and has the needed experience to do it and they also have other channels to Epic and NVIDIA to get what they need. The rest of us has to do it the community way, as usual.