(and full audience saturation & adoption takes time, discovery lag.
Powershell is genuinely growing into an effective & accessible platform, bringing automation & easier understanding of administration of all things Windows to the masses. Is some trepidation regarding this direction chosen for PowerShell, and evolution into PowerShell Core wrong? The differences between PowerShell and PowerShell Core The Breaking changes for PowerShell 6.0 document offers further details. The company mentions PowerShell Workflows, PowerShell Snap-ins, WMlv1 cmdlets and executing Desired State Configuration resources specifically.
Microsoft notes that some of the technologies may return in future releases but that this won't be the case for all of them. Some technologies available to Windows PowerShell are not supported by.