Keyboard shortcuts and a command line make Autocad a superior product. compared to looking for icons it is fast, many drawings will require thousands of operations. Icons are useful for the less used commands.
If the command line was ever removed, and the ability to (not) use use the so called ribbon as compared to the classic interface, another frightfully modern and mad (Homage to Alfred Noyes), interface pushed by Microstuff a few years ago would not update my software. I don't like going backwards.
Draftsight implemented the command line for a reason, it works well for experienced users. It is fast.
In a nutshell it is fast. End of story.
Regards
John