Great Post below! It's true Sony did this. There are a ton of benefits from Xbox doing this. Probably the most important benefit is that, even if still wholly owned my Microsoft, they could have their work culture, their own board of directors (assigned by Microsoft), their own employment policies, easier time dealing with the ftc for future acquisitions, etc.
There are some negative aspects too, such as it being easier to sell if they decided they wanted to, but some might see this as a benefit too.
It’s cool when they do it, it’s a problem when Xbox is even thinking about doing it. That’s if this latest information is true or not.