I think people are more negative than positive about this change. The old system allowed for far more freedom at the cost of being more annoying to set up.
This change cracks down on anyone who used the old system in unintended ways, i.e. to share games with family members not living in the same household. For now that check only compares store region/country, but I wouldn’t be surprised if they tighten the requirements further in the future.

It’s also a negative compared to the old system if one of your (adult) family members throws a huge tantrum, allowing them to cause a lot more damage and inconvenience than before.