Typical BS...
It's time AC joins the 21st century and equips its aircrafts with the proper equipment.
If a privately owned single engine aircraft can be equipped with WAAS/SBAS then surely a modern airliner like an Airbus 320 can be equipped with WAAS/SBAS.
Ground based nav aids are most likely going to be phased out at some point and satellite based approaches are going to become more and more the norm IMHO.