doc: confusing support for extensionless ESM #30655

From the ESM docs (emphasis mine):

import statements of .js and extensionless files are treated as ES modules if the nearest parent package.json contains "type": "module".

Unless I am mistaken (discussed in nodejs/modules#443), extensionless module resolution is not currently supported.

How can you have an import statement for an extensionless file when it does not resolve?