I’ve done the half of a block in my windows in my house, but I was really hoping for the flat panes. It is nicer to not have all the lines on every block but rather just the outside border.
It would make the “safe guards” so people don’t step in the decorative lava nicer looking to not be so off colored. or make nice display cases that you don’t have to hunt down a color that plays well with your atmosphere so its “mostly clear”.
Still its not a desperate need, just a desire.