It is still used but disabled.
You must know how to enable it to do F/W upgrades on older equipment.
True! And perhaps even worse -- TFTP (Trivial FTP) is still required for some older device firmware upgrades. Old Cisco routers, for example.
TFTP doesn't even have the pretense of authentication available, just connect to the server and it gives you the file. Granted, that's handy and easy, but anyone who implements a TFTP server on their LAN, other than in a totally enclosed, firewalled, or better, air-gapped environment, is asking for trouble.