Semantics. Instinctive is often used to describe point shooting. Technically, there are four styles:
Traditional Sight picture - needs no description.
Front Sight Focus - Jim Cirillo championed this rapid aiming style of gunfighting
Indexing - Aligning the gun with the target using whole body movement
Instinctive - Point shooting where the shooter aims a firearm without using the sights.
Even the NRA says instinctive and pointing are the same thing.
An Official Journal Of The NRA | Understanding Point Shooting
Bow hunters also consider instinctive and pointing to be the same thing.