Because System Shock 2023 just sounds goofy. I'm not sure how else they could have renamed it. They've been doing this with movies for decades, too.
The "Enhanced Edition" was the old version of the game with some mods and tweaks to make it playable for modern audiences. The new one is an actual graphical and gameplay remake.
Good, they've been on a tear of classic remakes here lately, and I hope the new engine System Shock was built from can be used to remake System Shock 2.
They already fixed most of the bugs in the first major patch. Are you talking about the lost audio log near the entrance to the elevator on Level 8? They fixed that problem.
Audiologs are a pain in the ass. Everytime they patch it something else breaks.
I played the game in January, there is more logs that the first patches, but it seems the minimum you can get is still the same (had to load an early version of the game to fix that, with steam shenanigans). The "defeat shodan" achievement doesn't work either, as in is bugged, no one has it.
So no, they didn't fix shit. That log in L8 is still inside the fucking wall.