thats just a system of escalating punishment, not teaching. First case permanent bans would injure the platform and leave room for competitors. Doing it in an escalating manner removes the people they want to remove and makes competition against them less viable.

If every strike on youtube was a permanent ban there would be many more creators on alternate platforms like rumble. They're not there to teach you, just to incentivize you to follow their rules or go somewhere else. Thus the complex system of strikes, demonetization, temporary live-streaming bans, etc.