It is on the road map for the SX-200 to have more of a 3300 GUI look and feel. The first and quickest methiod was to implement a GUI with what was already done. It will be a couple more releases before this happens, but it is on the road map.
If you want to know the truth, the web GUI was NOT created for Mitel techs. It was created for end-users, whom have become custom to using the text-based GUI, but wanted something a "bit" easier. Market researched proved that end-users were using the text-based GUI (specific forms only) instead of the MD'd MyAdministrator software. The thought then became, why are we working on and supporting a software application that no one is using.
Again, you will see the 200 GUI look more like the 3300 GUI. And to be honest, I question why we have two software programs - as the hardware (3300 and 200) are the exact same now. The only difference is software.