SawtheLight,
I can tell that you don't see the light. It is not that older aircraft are grandfathered, it is that progress must be made.
If you and others fail to see the improvements, they will no longer be made. If you fail to see the improvements, it is our fault for not having shown you the difference and the value. And it is the fault of those who say, irrationally, that there is no improvement in the new designs.