Yes, you can use the component model (and other tooling like WIT) without using WASI.
Yes, the component model is a standard developed under the umbrella of the W3C's WebAssembly Community Group.
That said, while it is relatively stable and hasn't changed much in the last year or so, the component model has not graduated through all the phases of the standardization process yet. It doesn't, for example, have a formal specification yet, although its canonical ABI does have a reference implementation in Python.
Yes, the component model is a standard developed under the umbrella of the W3C's WebAssembly Community Group.
That said, while it is relatively stable and hasn't changed much in the last year or so, the component model has not graduated through all the phases of the standardization process yet. It doesn't, for example, have a formal specification yet, although its canonical ABI does have a reference implementation in Python.
https://github.com/WebAssembly/component-model/