I think the barrier to commercialization is the lack of demonstrated economic value to having push button splats. There's no shortage of small teams wiring together open source splats / NeRF / whatever papers; there's a dearth of valuable, repeatable businesses that could make use of what those small teams are building.

Would it be cool to just have content in 3D? Undoubtedly. But figuring out a use case, that's where people need to be focusing. I think there are a lot of opportunities, but it's still early days -- and not just for the technology.