Configs interfere with SSID deletion in connmanctl

Is it intended behavior that when a *.config is present in
/var/lib/connman that connmanctl will refuse to delete the config?

I have a config for my local SSID. What we do is upon boot: a script
looks for wifi info in a txt file in /boot/wifi. If one is there, we
create a *.config and put it in /var/lib/connman and when connman
starts, it will connect to that SSID. All good. Works as expected. If
I go to connmanctl and try to remove the config
connmanctl> config wifi_blah_blah --remove
Error wifi_blah_blah: Not supported

Is there a requirement that the *.config must be named exactly as the
folder in /var/lib/connman for that SSID and then it will work? As it
is, we give it a name which is the "second blah".config (the hex
string conversion of the SSID name). Is the intention that we are
supposed to delete the *.config after our first connection to the SSID
and then let connman manage it? We do notice that when we delete the
*.config that connman automatically disconnects then deletes the
folder structure under /var/lib/conman.

Keith