Modernize your SharePoint team sites by connecting them to new Office 365 groups

Mark-Kashman Please update this and all other related Modernization stubs with a notice at the introduction stating that root level sites currently are not able to be modernized.  Currently the only way for an admin to come to this determination is to read through and attempt all of the site modernization efforts and fail, by being guided to:

1. Connect to O365 through site settings failure (https://docs.microsoft.com/en-us/sharepoint/dev/transform/modernize-classic-sites),
2. Scripting Set-SPOSiteOffice365Group and failing (link),
3. Surrendering to the https://docs.microsoft.com/en-us/sharepoint/dev/transform/modernize-scanner, which first requires:
4. Configuring an https://docs.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azuread/SP App client and ID, then running the scanner,
5. ONLY THEN to receive the O365 Group Connection Readiness.xlsx file, filtering to your root site, and seeing the */isTenantRootSite and the message that "the root site of your tenant can not be group connected".

This really needs to be much more prominent at the start of all the Modernization documentation - it currently isn't captured anywhere.

On that line, is there an ETA for a conversion option of existing Classic Tenant Root sites to Modern?
Thank you!