During the quest Come Fly With Me leader Jason Bright states
"Please, wanderer, bear in mind that every feral ghoul you spare now is one that we can save later."
Is there any benefit to avoid killing the feral ghouls wandering the Repconn test site before or during the quest?
I've read Jason and his Bright Brotherhood will become hostile if you kill a feral ghoul within his line of sight; but that's only possible during the thirty seconds where he transitions from the upstairs laboratory to the basement launch pad.
If I complete the quest by sneaking past every feral ghoul do I earn bonus reputation, karma, experience, caps or even a line of dialog?