If players get benefits, they'll bite the hand that gives, and never bat an eye. They'll even betray their own sect or even stab their own leader without thinking twice.
There's basically no decency here.
As a former player, Lu Bei was perfectly aware of all this. His attitude towards players was simple – use them and discard them, rotating them like crops, never caring about nurturing any specific person.
He never planned on nurturing any of at least thirty outer sect disciples.
With one side indifferent and the other uncaring, it seemed reasonable for them to part amicably.
That said, Lu Bei did have the idea of nurturing a certain player.
Nothing else, but after the official game opens, the Nine Continents World will host its first ranking tournament. If a disciple from the Feather Gate makes a big splash, he could get a good ranking on the leaderboard, and that would definitely attract a bunch of eager and complaining new players for him.