I cannot help but agree here, after nearly 2 years working on a Mod for Skyrim the physics presented in Sui Genaris are simply amazing. I see this as a new way of handling things in a game environment, and the Game is a special bonus to the technology being developed by the team. I perhaps have a skewed perspective having fought against the limitations of other engines for the last 20 years to make them do what I want. This system is amazing to me and I fully support the effort and imagination that is going into the project.
As someone who can relate to this feeling (as it initially made me back the Kickstarter), it's very much worth checking what's planned for the game. Having played and ultimately being disappointed in Skyrim as well, there are many, many things being planned never before seen in RPGs, in part due to engine limitations.
Things like truly dynamic NPCs, skill progression that makes sense, no artificial/numerical difficulty like levels and stats, a storyline you don't need to be involved in, armor that actually behaves as armor rather than a statistical bonus, a large, interconnected underworld, gameplay that lets you take the time to explore and search for little things rather than blazing through linear quests, the list can go on for as long as you want it to.
Everything on the list sounds really ambitious, and might feel reminiscent of the first and second time you actually got to play Skyrim. In the first playthrough you'll notice lots of cool new dialogue and additions all over the place, the second time (or later during the first time) you'll realize there's a scripted event set to play the first time you go just about anywhere.
But Bare Mettle has been continuously proving they're capable of more than just claiming things, so the hype is real. I'm hoping you can get excited for the game itself as well. Keep in mind all of the great engine work has been a precursor to making the actual game itself, which is fairly mindblowing. The quote I'm using in my signature is a great embodiment of the developers' sentiment.
(P.S. I don't dislike Skyrim, I enjoyed playing it and appreciate what it has achieved. But it's a great example of approaching the limits of what conventional engines are currently capable of, and what areas still have room for improvement as we approach them, or bypass them by developing a completely new engine.)