I also prefer CLI Chojin. It forces me to understand every thing. But you know some times even people with proper knowledge have junior assitances with moderate knowledge. These were highered just to help when the head admin is not there. They might NOT need to know every thing about CLI to do there job, or some times SDM, CCP is much quicker to learn for them to do common straight forward tasks. These Juniors might move on to different jobs in the organization, given there mental abilities are exposed, so it's not always in there manager's plan to let them master the CLI as it can be time consuming to do so.
Again, I do CLI more, but I like the look and feel of a neat user interface