Why does the SQL 'sa' account need to be enabled during install?

One of the checks in our database initialization scripts is for the existence of the actual SA account.

Even if you're using windows authentication to lay down the AccessData databases, if you don't have an enabled account called 'sa', DBConfig will warn you and halt the initialization.

If desired, you can disable the 'sa' account after implementation. 

You may also reference this article: Change the 'sa' password in MSSQL