In my experience next to nobody knows about the CLI tooling for Kerberos in Windows. It's a damn shame, too, because Windows interops well w/ standard Kerberos in my opinion.

The only time that I can remember having to use keytabs is with ISC DHCP.... at home.

No 3rd party AD-integrated software, of which there were plenty of non-MSFT stuff, did I ever have to create a keytab for when playing Domain Admin at work.