We know that Pig/Legion'/Demogorgon's power doesn't activate NOED, STBFL etc. so why does the new killer benefits from those perks while using his power? Is it intended?
Do you mean the basic attack after the power?
Demo,Pig,Legion all have different m1 attacks from the base attack. Lunge from demo is a different m1, Legion frenzy is a different m1, Pig lunge is a different m1. When you get in distance from a hook, its a normal m1 attack.
Nurse and Wraith also have surprise/blink attacks after using their power, but these are basic attack. If you swing while holding someone on the hook, it is a basic attack. Or are you saying that the arrow can insta down on range?
He doesn't. His power is the hook.
It's his basic attack that benefits from those perks.