This term zone read in its simplicity and mis-understanding in this offense is becoming a bit silly. Fans are looking at the play fake by the QB and making alot of wholesale assumptions and are missing the fundamentals as well as the complexities of the offense.
The OP is partially right with his analysis of the receivers being the main thrust of this offense. This offense is a hybrid of two mindsets : The West Coast Passing Game and the Rich Rod spread game
The main action of this offense IS NOT and never will be the QB READ OPTION ..despite the obvious play fake by the QB that so many love to talk about.
The QBs primary 'zone read' is to A ) hand off to the RB or B) pull the handoff and pass into a tier west coast route system . Typically layered routes that stretch the field horizontally and vertically with many high percentage routes underneath and comeback routes. As with any west coast game , aspects of the passing game are one in the same with the running game.
The 'zone read ' action that we all love to talk about , is not performed by the QB . It is performed by the RB . When he receives the handoff , the RB has a choice of gaps based on his read of the zone ...usually two inside and a backside 'cutback' run ( what is the H gap or F gap depending on the system ) This is also the lane that a QB runs in a true option zone read QB driven system .
So why does the QB execute the run fake ? Well , he is intended to keep the ball 2-3 times a game . He is also intended to boot out along this route 4-5 times a game . This threat also forces the defense to account for the empty gap .
Sooo the zone read is actually being run by the RBs and not the QB in this offense ...and the passing game is basically the Joe Montana style west coast layered attack
Where the offense is coming up short is execution. A freshman laden , rookie O line is inconsistent in their blocking ( completely normal thing here folks) and the freshman running back and the senior who was not here for much of the off season are having some recognition problems in the zone read ( that they are running NOT the QB ) These things will fix themselves with repetition and experience.
This running style is called the 'dive' offense and has worked fine in the NFL and will absolutely would fine in the SEC when blocked and executed well . The west coast passing game has worked fine at all levels of the NFL ...so dear OP , it will work here to when the top layers of the routes have time to develop due to sound O line play .
Just a side note on the OK game : They had flared out backers the entire game because they knew we could not block them inside...no cutback or outside zone running for anyone ! You wont see much out side zone against a competent 3-4 D because the outside backers hold the H gap easily ( stanford vs Oregon ) Because our freshman O line was getting beat quickly by one of the best D fronts in the country , the top layer routes could not develope. They had the luxury of sitting on all underneath routes and run gaps.
It comes down to blocking . When we can do that ...you guys will see how dynamic and fun this offense is . Stop waiting on the QB keepers !