I know there is a feature request open somewhere to remove this from production sites but cant find it.
I just had a customer change there nameservers from cloudflare and all there mail and everything went down...
The prompt shouldnt be there at all in my opinion. Adding the nameservers down under the IP addresses would be fine, but having the consistent prompt there telling them to connect the nameservers makes them think something is wrong/not connected properly... So they go ahead and do it, and those with less experience, well.... here we are with support tickets lol.