Multiple vs. Prolonged Contact

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First, let's be clear about when a referee should never make a double-hit call. All three rule sets (NFHS, NCAA, USAV) state that during a team's first hit, successive contacts are permitted as long as there is only one attempt to play the ball. A ball rolling up a player's arms - as long as the ball does not come to rest - is considered multiple contacts in one act of playing the ball. In that case, referees should allow play to continue as long as it occurs on the team's first contact.

The above paragraph comes from an article written by a PAVO national referee. I am questioning the bolded portion as it relates to NFHS rules, since I work under no other rules set. It has always been my understanding that a ball, which "rolls up" a player's arms is prolonged contact (illegal even on a team's first hit). To be clear, I am not referring to a ball that hits off the players wrist, then arm, then shoulder (legal multiple contact) on the team's first hit. I am referring to a ball that actually rolls up the players arm. Do you view this as prolonged contact or multiple contact?