This feature was part of view options and it was decided to keep it open, and see for feedback from customers to see how much security we want to put on the items under View Options. In 15.8 we added an admin right for managing default views.
This was decided as opposed to add all of the restrictions up-front and paring it back if it is not used or not needed, we went for leaving it open.
If you would like this to change, please join the PM Office hours and explain your use case. Here is how you can do this: