Has Carson Flores truly forgotten?
Of course not!
This is just a little trick he's playing, merely to deepen an impression, and simultaneously a slight test.
A person's impression of another comes from fragments left by various events.
Carson Flores comes from the Mortal Realm, and he has never seen those so-called Golden Immortals and Heavenly Immortals as untouchable and unapproachable deities; they are just cultivators, a bit stronger than himself.
In terms of power, he might not be their match, but after all, we are all humans, and we are all cultivators. Perhaps when they were his age, they weren't as formidable as he is now.
Given enough time, how much could he really lag behind them?
With such arrogance and confidence in his heart, Carson can remain neither servile nor overbearing when dealing with all sorts of powerful beings, maintaining an attitude of true equality without kowtowing to them.