The point is, we do not want antialiasing.
We want aliased things on screen!
Where every pixel hold real information.
Working with AA active on a CAD feels like having a constant vision defect.
Related, 2 year ago Graphic bugs in rhino 6 - #12 by maje90
Current situation with simple lines: (RH7, AA off, repeatable on any machine)
Nobody can say this is good. 