That's mostly because we're used to the UI. I'm sure a fresh perspective would point out a lot of improvements that can be made - Unfortunately, most of those would require at least a partial system redesign, and the rest would only be solvable by making the game more like an overhead action game or FPS. I know there have been FPS attempts, but nothing's been released to the public quite yet.
I really recommend that Newbies simply Spectate or Ghost through their first round and follow some people performing jobs you're interested in. Once you've watched them for a round or so, you'll have a better idea of what those jobs entail and what's possible with the system. From there, wait until someone takes that a job you want to learn or a job that oversees that job and ask to follow them around and help you learn in-game. Mining is pretty simple once you figure out internals (Which is absolutely vital to survival), and if you screw something up you'll only destroy a mostly unused part of the station.
Also, be sure to tell people you're new in OOC, let them know who your character is, and ask any questions you have in there. Folks will automatically be 200% more friendly towards you. If there's something complex you can't figure out, check the Wiki. It's pretty thorough. Click through the tabs on the top left, too, since there's a lot of options you can't see normally.
On a side note; people who play security, have you ever arrested someone for growing A.V. before?
As the Detective, I got hard evidence of someone distributing it (To me, no less) and watched them be brutally beaten as punishment.
So, no, I guess I haven't.