I have to disagree. I had a honor to fly on jump seat in presidential aircraft on official mission. I haven't noticed anything but "Lufthansa" standard,if we agree that Lufthansa deserve current top reputation.
The first thing that apparently was not "Lufthansa standard" on your jumpsear flight was the fact that YOU WERE ON THE JUMPSEAT!
On quite a few recent high profile accidents there has been someone on the J/S. Might not have been the cause for the accident, but at least there was distraction from the flightdeck routine.
And, as Andrasz mentioned before, the last thing you need on a troubled approach is a voice from the second row telling you how to do it better...