You don't know history.
The original definition of freestyling = live performance of a rhyme, ideally one not performed before.
West coast cats have always taken things to extremes (power moves, g-funk, etc.), initially to get their props from the east coast and then to one-up them when they realized that wasn't going to happen. Some west coast kids started spontaneously composing their freestyles as they were performing, and over time that became an ideal. And then, revisionist history came in:
- The same revisionist history that makes Reasonable Doubt some kind of classic
- That makes you misguided kids think sampling is wack
etc.
Spontaneously performing your rhymes is what real freestyling is = propaganda put out to keep Craig G, Supernatural, Juice, and whoever put out that Freestyle DVD full.