The interesting part is what exactly needed to be replaced by DLL... and the question is what does the DLL differently to the engine core.
Maybe because the engine core has a lot more features then the DLL. Locoweed used his own DLLs for a specific purpose but the 3dgs has to be programmed to fit for any game in any situation meaning that c_trace for example generates a lot more data than you might actually need.
So basically it is just the decision between a lot of comfort or a lot of performance.
And since 3dgs wants to support all the noobs it has a lot of comfort in scripting (and still people are whining that it hasnt got enough features).
