Please log the bugs you find (that space one bit me too which is why I remember it so well).
We are putting more effort into CLI tooling as they are requested more and more and to be honest, we need them internally - Cirrus and SaaS use them a ton and have a huge amount of requests - get your voice in there too 
I am not sure about the migration tooling you mention - I donāt deal with those scenarios too often so please abuse away. CLI tools are a part of the product just like a form so call away on the functionality.
Your commentary on the admin console is valid concerning the lack of a āenterpriseā or āfarmā service which manages multiple instances. That is all client side (XML files? donāt remember where thatās cached). Itās been a personal mission to try to build out an āenterprise configuration systemā which knows all servers, their versions, reduce fill in the blank forms to handle migrations, etc since there would be one source of the truth to manage all the instances - load balanced or different versions / test / dev environments. Some day Iāll get the chance to build it, in the meanwhile we are nibbling away at it by attacking some of the building blocks needed to support that goal.