As someone who was inspired to buy their first Apple laptop by the "send all other UNIX boxes to /dev/null" ad I feel like Apple is already done and we are just catching the last remaining tail of that legacy.
Seems underlying features such as kerberos, NFS, auto mount and others are just bit rotting by now and its a matter of time before MacOS becomes Windows 8.
Those features also have a shrinking user base over time, so they get less resources and attention.