If you read the nature paper, it's a really interesting piece of research.
The intention of the research wasn't to make eggs from male human cells, it was to look at why and how stem cells in culture have such a high likelihood of chromosomal loss or changes. Stem cells are researched in the main to look at cures and therapies for human disease, including cancer, dementia and other genetic conditions, so is very important research. During the research, it was found that a reasonable percentage of stem cells lost the y chromosome in culture, so the researchers looked into this further. The main focus of the ongoing research seems to be the hope that it could be used in endangered species, where numbers are so depleted that this could be the last chance before extinction.
The success rate of live births was incredibly low (less than 1% of implanted embryos, with only 30% of cells becoming eggs, and only 40% of those fertilising), so the likelihood this would ever be used in human reproduction is incredibly small.