That said, at least he documented things and presented his issues cogently so that the dev team can see where issues are, and possibly address them in the future.
The thing we use at Expat is incredibly fast and turns out really good code. It's the reason we can move so fast, and it's a competitive advantage. But I wouldn't release it to the world.
It just has too many optimizations for the way we like to do things. And there's still the matter of the order-of-magnitude gap in level of effort between something you use in house and something you can release as a product.
Right now, this guy has something stripped down to the bare essentials to do what his shop does. Ideally, he's shed all the useless garbage that naturally accumulates in any commercial framework the size of django. And as a result, the final product probably isn't of any use to anybody outside his team.
There's no reason to contribute it back to the community, because it's specifically targeted to his needs (and therefore wouldn't be considered better by anybody outside his team). Spending even an hour polishing it up for somebody else's consumption would be a distraction.