Any student or private pilot can land easily without a glide slope. Airline pilots are simply flying larger aircraft with the same aerodynamic principles. To say an airline pilot needs to have a glide slope to land but a beginning student doesn't makes no sense.
I have landed so many times at SFO on 28L with no GS flying an airliner with zero problems both from the north and south. All of us considered it a non event. All my pilot friends agree. Pilot standards should be raised to force all airline pilots to be able to do this simple approach or get trained so they can.
The video from the amateur video shot shows how totally incompetent these three were in letting this crash happen. Even the holding flight watching the event couldn't believe what they were doing.
Get qualified to fly your aircraft for any approach or stay out of the cockpit. We can't make aviation work if it is designed to work for the lowest common denominator and let weak pilots fly with the pro's. Get up to speed, we are not interested in lowering standards so you don't have to get up to speed.