I've done this. It irks me too, but sometimes I'm in organizational mode, and sometimes I'm in execution mode. :)

Also, I work in an environment[0] where all work is required to go through the formal tracker documentation flow (and all code changes must be approved by a second party).

So the ticket step is non-optional, and in fact required before work can begin -- we name branches with the ticket ID, so that Pivotal[1] can track the GitHub lifecycle.

[0] PCI-DSS, SOC 2, etc

[1] RIP :(