EXACTLY correct!
I mean, I want to see Venom as much as anyone else, but the truth is that the film is more about the symbiote than Venom. Peter's inner battle with hisself, weaknesses, etc. and his outer battle with the darkness of the symbiote is really what the film is summed up to. Sure Gwen, Eddie, and The Sandman add to the drama of it, but the film is ULTIMATELY about Peter.
His turn to darkness, redemption, and the consequences of all he does in the film.
Venom is probably the best villain

cwink

in the film, but he is not important until the end. When we have our epic "Spidey vs. Venom" battle at the end, it will be like Peter is battling himself again. Only stronger and a much more evil presence will be facing him.
In the end, Peter's only lesson will be that power and darkness corrupt. That's a good lesson to learn you know...
CAH