I think this is because the commands are poorly named and badly organised. Professionals will use it frequently enough that they remember everything they need a

I think this is because the commands are poorly named and badly organised. Professionals will use it frequently enough that they remember everything they need and find it easy from that point forward, but for beginners the unintuitive commands are a double-whammy. It's hard to find the command you want, and the poor naming is a hinderence to building a good mental model of the system.