kill-controller broken for CAAS

$ juju kill-controller -t 0 -y k1 --debug
14:15:16 INFO juju.cmd supercommand.go:56 running juju [2.9-rc3 0 d0debe929e850349bf016658fa2a2b6b91987f24 gc go1.14.12]
14:15:16 DEBUG juju.cmd supercommand.go:57 args: []string{"juju", "kill-controller", "-t", "0", "-y", "k1", "--debug"}
14:15:16 INFO juju.juju api.go:76 connecting to API addresses: [10.152.183.24:17070]
14:15:26 INFO cmd kill.go:119 Unable to open API: open connection timed out
14:15:26 DEBUG juju.kubernetes.provider provider.go:121 opening model "controller".
ERROR getting controller environ: getting environ using bootstrap config from client store: unable to determine legacy status for namespace controller: Get "https://172.16.104.2:16443/api/v1/namespaces/controller": dial tcp 172.16.104.2:16443: connect: connection refused
14:15:26 DEBUG cmd supercommand.go:537 error stack:
Get "https://172.16.104.2:16443/api/v1/namespaces/controller": dial tcp 172.16.104.2:16443: connect: connection refused
github.com/juju/juju/caas/kubernetes/provider/utils/labels.go:49: unable to determine legacy status for namespace controller
github.com/juju/juju/caas/kubernetes/provider/k8s.go:186:
github.com/juju/juju/cmd/juju/controller/destroy.go:548: getting environ using bootstrap config from client store
github.com/juju/juju/cmd/juju/controller/kill.go:125: getting controller environ
$ juju controllers
Use --refresh option with this command to see the latest information.

Controller Model User Access Cloud/Region Models Nodes HA Version
k1* controller admin superuser microk8s/localhost 1 1 - 2.9-rc3

broker.Destroy handles this inaccessible cluster error but the IsLegacyModelLabels was called before we reach here, then Juju errors out and prevents the controller gets killed.