Can't delete an EC2 route table

[Yosemite Sam]

Hello,

I have no idea why this simple test code does not delete a route table.  Hopefully, someone with fresh eyes can spot the problem.

Playbook:

---

- name:                     trythis
  hosts:                    localhost
  connection:               local
  gather_facts:             True

  tasks:
    - ec2_vpc_route_table_facts:
        region:             "{{ aws.region }}"
        filters:
          route-table-id:   rtb-8bb593ef
      register:             route_table_facts

    - debug:                var=route_table_facts

    - ec2_vpc_route_table:
        region:             "{{ aws.region }}"
        vpc_id:             vpc-8b1277ef
        route_table_id:     rtb-8bb593ef
        state:              absent
      register:             route_table

    - debug:                var=route_table

Here's the first debug:

ok: [localhost] => {
    "route_table_facts": {
        "changed": false,
        "route_tables": [
            {
                "associations": [],
                "id": "rtb-8bb593ef",
                "routes": [
                    {
                        "destination_cidr_block": "10.0.0.0/22",
                        "gateway_id": "local",
                        "instance_id": null,
                        "interface_id": null,
                        "origin": "CreateRouteTable",
                        "state": "active",
                        "vpc_peering_connection_id": null
                    }
                ],
                "tags": {},
                "vpc_id": "vpc-8b1277ef"
            }
        ]
    }
}

Here's the second debug:

TASK [debug] ***************************************************************************************
ok: [localhost] => {
    "route_table": {
        "changed": false
    }
}


Any assistance would be appreciated!

Jack