It's not an exact comparison, because of the nature of the CBS/Paramount paradigm, but I think it's a good point. S.H.I.E.L.D. will give a general idea of how successful a prime time tie in show to a major blockbuster can be on basically name recognition alone.
Of course CBS is agents of shield, they're the most conservative network out there, they want to see if by budget sci fi tied to a movie franchise can work on tv and then they'll copy it. I always assumed that the love action star wars show would convince CBS to return star trek to TV, but with that show not happening right now, it makes sense that they'd watch the next best thing which in this case is shield.