Most of those punches could have caused a KO and both Jake and Tyson dodged a fair few great punches. They were both throwing good ones right to the end though they were few and far between. If it was fixed, scripted or there was a no KO agreement I think it would have been obvious and the fight would have gone a much different way.
Did you not see that Jake had few chances to knock him out in the link you just shared? Or am I the only one noticing it? 
I'm not a professional boxer, but Tyson repeatedly exposed his face for a knockout, and he was already looking exhausted in the final round. Financially, it was a good business, but it was a disaster on a sporting level.
Jake vs Ishowspeed: Why is the WBO allowing clown to clown fixtures?I get they need the money and publicity, but letting a YouTuber with no boxing experience enter a professional ring is insane. I wonder what boxing fans think about this match.
you're not the only one, one of the very clear chances Jake could have knocked down/out Tyson was in round 3 around 1:36, you can even see Mike Tyson losing balance his balance, so he will certainly get knocked down or knocked out if Jake Paul continued punching, but for some "unknown" reason jake stopped punching