No, Microsoft has not been recommending .local, as this document, circa Windows Server 2000, states:
> Identify your organization's DNS owner and determine what registered DNS names you have available on the network that will host Active Directory.
> If you do not have a registered domain name, you should register a name with an Internet DNS registration authority.
https://technet.microsoft.com/en-us/library/bb727085.aspx
>