We are working on a new documentation process plan, in which the main objective is to make triple slash comments the source of truth for documentation, instead of MS Docs: We want developers/maintainers to have an easier time maintaining the documentation for their APIs.
You can use the DocsPortingTool to automate the backport process: Run the tool targeting the assembly, then submit a PR with the changes.
You can find detailed instructions for the backporting process here.
Area owners are free to decide if they want to address this in 6.0 or in Future.