I am excited by the prospect of booting Wasm binaries without any JS glue, but when I've looked at the documentation for the component model and WIT it says that resources are references passed using a borrow checking model. That would be a serious downgrade compared to the GC-managed reference passing I can do today with Wasm GC. Do you know if there are any plans to resolve this mismatch?

The tooling has been in it's early days for a long time. As quickly as that can improve, so will the uptake. The technology itself is quite capable.