My guess is that the developer found certain tasks to be easy, and figured that other tasks would be too. Such as, "Implementing a hunger system was pretty straight forward, I'll just do something similar for all my other needs." which is all fine and dandy, until you have now made three identical systems, and you find an error in the first one, and you have to refactor, and decide that you need to build a need class that everything inherits from, and now for some reason X feature, which shouldn't have had anything to do with Y feature, other than the need interaction, has suddenly stopped working because it isn't getting the information that it expects in the format it expects, and now nothing works.
Not saying that is exactly what seems to have happened, but... that is almost always what happens. They got a least playable built rather quickly, thanks to the tools unreal provides, but then when they had to branch out into their custom pieces, they probably had to build (and refactor) a few times to work out some of the kinks. I think they will be able to progress a bit, and will probably make it to 0.75 before they hit their next roadblock. If I knew anything more than the basics of Unreal or C++, then I would volunteer to help them, because I'm excited for this project, but unfortunately, I know Unity, and C#...
If I didn't still need to learn Java for next semester, I might of jumped in head first and tried to see what I could figure out from youtube and some of the paid learning sites, but there is only so much time.
I do expect that they will be able to remodel the university grounds fairly easily, add more dorms you can't go into, maybe a little skybox fuckery to make it look like their is more dorms than their are. I think there is a big lecture hall, because they had an idea for something with a big lecture hall, maybe some exhibitionist content towards the back, or they based the place on a school they went to. It reminded me a little of Friends University in Wichita, KS, which is hilarious because it's a private Christian university. If you throw in some places concept that most of the students live off campus (UK I think? Not British, so I'm not sure, but I'm told it is a thing abroad) then a small university of about 600 to 1000 students starts to pass the sniff test enough that you can go, "eh, not worried enough about the math for now" and get on with the game (Oh, and Friends has around 1k students, but I never went into their dorms or anything, I was there for a psych conference).
Though now that I'm on the subject, and their town is a little huge, it would be cool if they did generate 600 or so unique students that just wandered around. Not something that should be a development goal right now, but just would be cool for their final polish to actually figure out what the fuck the schedule should look like, and maybe give them a few more buildings.
Sorry for the long rant, I'm up past my bedtime, and my meds have worn off.