Why can Ansible AWX only have one machine credential per inventory?

Question

Is there a reason not to set credentials for each host? When defined multiple hosts in one inventory, is it common sense to share one private key?

Answer 1

There is no reason for this, you can have separate creds for each host. But as per the best practices, you should keep separate user with a single key for host login and AWX also user single login creds for all hosts login afaik.