Here is more background info on why those recommendations are being made:
AutoGrowth - data files change to 256MB and 128MB for log files - this is both for the ePO database and the tempdb.
This is recommended so that file growths are always a predictable fixed size. If the AutoGrowth is specified to use a percentage then the file growths become increasingly larger with each successive growth. The actual numbers of 256MB and 128MB are starting points. Each environment may have slightly different workloads being processed by SQL Server and might need different values. More info is here: https://support.microsoft.com/en-us/kb/315512
TempDB should have the same number of data files as cpu cores - we are using 2 cpu cores.
See the resolution section of this KB: https://support.microsoft.com/en-us/kb/2154845
Backup compression default should be set to 1
This will require less space for the ePO db backups, but will use more CPU during the backup operation: https://msdn.microsoft.com/en-us/library/bb933863.aspx
Cost threshold for parallelism should be set to 50
By default the cost threshold is set to 5, which means that SQL Server will unnecessarily choose to use parallel operators in the query plans. The value of 50 is just a starting point. For more information see here: https://technet.microsoft.com/en-us/library/ms190949(v=sql.110).aspx
Auto shrink should be set for false
This option causes a cycle of growth-shrink-growth that leads to fragmentation of the data pages in the database. More information is here: