I think some of it is interesting and some of it is more person/condition specific.
A bowling ball will go through 3 phases ideally. When people refer to the ball rolling out they are usually refering to the ball entering the roll phase very early and defelecting. Most bowlers don't know there is a roll phase. They think the ball continues hooking down lane. They also do not know that the ball will deflect if entering the pocket while still in the hook phase.
Plastic or any other ball can hook at various speeds if there is enough friction. All bowling balls need friction to hook.
Parts of a two people arguing doesn't tell a story.