The article helpfully addresses a lot of this. The majority of the article talks about the town that they excavated that existed for precisely this reason. The

The article helpfully addresses a lot of this. The majority of the article talks about the town that they excavated that existed for precisely this reason. The evidence strongly suggests that the residents were very well looked after. They also speculate that the town was populated as a consequence of a form of feudal duty called bak. This feudalism is documented but isn't known to have been used specifically to build the great pyramids (though it seems likely). On the assumption that this is true, the lack of family accommodation etc is entirely plausible: the workers are seconded to the town for periods rather than live there full time. I would really recommend reading the article, even if you're not an archaeologist. It's very interesting what you can learn from the evidence.