No, it hasn't.
What people don't seem to realize is that, because of the nature of the symbiote story (especially when incorporating it into a 2 hour movie), Venom cannot be introduced until the third act. It's impossible to do it any sooner than that. You can build up Eddie Brock more (introduce him in the first act, depict his conflict with Peter in the second) but Venom himself cannot show up until the third act. It's not that Raimi hated Venom and went out of his way to give him as little screentime as possible; he was fully cognizant that Venom could only be introduced in the movie's final act (and he has said as much in interviews).
Yet, few people actually understand this, which is why Raimi is constantly attacked for "mistreating" Venom, leading people to believe that the movie would have been much better if Sandman had been cut. The movie can't work without Sandman. Harry is neither a strong enough or nor unique enough villain to carry the movie by himself into the third act.