The simutranslator will just ignore any image it does not find, but still import the entry. Also it usually only imports (0,0), to save some space internally. It has limitations both in files size and running CPU time, hence it might not be able to upload large graphics.
The generate pakset function is not planned, as it would be very CPU heavy and also it maintains closed paksets. Also I think a proper revisiong system is better for working on a pakset than a database.
Although, I admid a simutranslator that pulls its data regularily from the divers SVNs would be nice to have ... But I think this would require fundamental changes, and until somebody want to invest very much in terms of programming time (and maybe also money for hosting such large files), that will never happen.
And Frankp pays for the server for a long time, and he can (and did) add features and fix bugs. Like the help file preview, the suggestion function and many other stuff.