ZHA is asking to add a dongle that I'm using for Z2MQTT?

The answer to this one is probably very simple and obvious, but I thought that I’d ask anyway.

I’m migrating from ZHA with a Skyconnect dongle to Z2MQTT with a Sonoff Dongle, but some of my devices don’t play well with Z2M so I’m going to be running two different Zigbee networks until I’ve ironed out the bugs.

The ZHA integration is now asking me if I want to add the Sonoff dongle that I’m using for Z2M to ZHA.

See below.

For me the obvious answer would seem to be that I don’t want to do this.

Is this instinct correct?

correct