Independent Tenant-Wide External Sharing settings
In https://[COMPANYNAME]-admin.sharepoint.com/_layouts/15/online/AdminHome.aspx#/sharing, there are separate slider for OneDrive and SharePoint Online, so that they may have different external sharing settings.
Since we cannot administer Teams the same way we do SharePoint Online sites, it doesn't make sense to tie Teams global sharing settings to SharePoint Online's global sharing settings.
This would also allow us opportunities to test Teams without impacting our SharePoint Online environment.
Also we must be able to configure Sharepoint and One Drive different. Classic sites still managed different from design view.