no visible sign that HA is degraded when lost

I bootstrapped on lxd and ran enable-ha. I then was presented with three state servers and each show controller-member-status: has-vote

I then used lxc delete to remove the controller #1 (leaving #0 and #2) and there was no indication that there was any sort of degradation or failure in show-controller, juju status, juju status --format=yaml. I could not tell any way to interrogate and see that the #1 was gone. I tried to ping each controller IP address and found that #1 was not responding.

Current output:

juju status --format=yaml
model:
  name: controller
  controller: uxtest
  cloud: lxd
  version: 2.0-beta11
machines:
  "0":
    juju-status:
      current: started
      since: 13 Jul 2016 11:38:08-04:00
      version: 2.0-beta11
    dns-name: 10.90.136.71
    instance-id: juju-8c982a-0
    machine-status:
      current: running
      message: Running
      since: 13 Jul 2016 11:22:34-04:00
    series: xenial
    hardware: arch=amd64 cpu-cores=0 mem=0M
    controller-member-status: has-vote
  "1":
    juju-status:
      current: started
      since: 13 Jul 2016 11:38:08-04:00
      version: 2.0-beta11
    dns-name: 10.90.136.92
    instance-id: juju-8c982a-1
    machine-status:
      current: running
      message: Running
      since: 13 Jul 2016 11:37:36-04:00
    series: xenial
    hardware: arch=amd64 cpu-cores=0 mem=0M
    controller-member-status: has-vote
  "2":
    juju-status:
      current: started
      since: 13 Jul 2016 11:38:08-04:00
      version: 2.0-beta11
    dns-name: 10.90.136.249
    instance-id: juju-8c982a-2
    machine-status:
      current: running
      message: Running
      since: 13 Jul 2016 11:37:20-04:00
    series: xenial
    hardware: arch=amd64 cpu-cores=0 mem=0M
    controller-member-status: has-vote
applications: {}