It's not. Or if it is, it's unclear. The article seems more focused on the integrity of remote development servers and deployment targets:
> Unlike Tramp, which lives off the land on the remote connection, VSCode mounts a full-scale invasion: it runs a Bash snippet stager that downloads an agent, including a binary installation of Node.
> I would be a little nervous about letting people VSCode-remote-edit stuff on dev servers, and apoplectic if that happened during an incident on something in production.