You have no clue what RPO is and your forgetting more football comment is contradictory to the knowledge you've tried to portray in all the threads including this one.
See if you can follow this as some other posters have tried to enlighten you with their posts on it. I'm going to give it a try as well.
A play is called that starts out looking like a running play. The OL blocks for a running play, the RB moves towards the QB to take the hand off, but the WR do not block like a running play, some or all of them run pass routes. The QB then has to read a defender or an alignment to determine if he is going to give the ball to the RB for the running play or pull the ball and throw it to a WR. Most of the time, that decision making takes place post snap.
D coordinators believe that when RPO's happen, the OL are blocking illegally downfield and if you watch closely in games, it does happen but rarely gets called. One thing that helps the OL is when they run RPO wide plays where they are moving laterally as they are less likely to go downfield when it does turn into a pass play.
On the play Zack pulled it and ran, it was absolutely the correct read as the DE crashed hard to chase Rodney, his shoulders were turned and he was way past the mesh point of the RB and QB, thus the pull and run by Zack as there was nobody left to defend the edge. One of the plays shortly after that one, we ran the same action and that DE froze at the LOS to check to see if Zack actually handed it off. Leaving Rodney with more time to get wide and find a seam.