Not to mention they have 2 more planned... They're not out yet, but I think that he was comparing future tenses "Justice League" (which will no doubt have sequels if its successful) and "The Avengers" (1/2/3); and I'm inclined to agree. I enjoyed MoS more than The Avengers or any of the stories leading up to it with the exception of the first Iron Man, which has a special place in my heart and will not likely be dethroned anytime soon. That is, until they make the Doctor Strange movie...that could be 2 1/2 hours of orgasms.
I'm not sure how the storyline of MoS isn't 'cohesive', but to each his own; we all see things differently. But I found no plot holes and felt that the story, while at times light, was fleshed out enough for us to understand Kal-El and his origins, which was the main focus of this entry. A launching point, if you will. Surely successive movies will delve deeper into the mythos of Superman. I'm really excited for it.
I actually might go see this again tonight. It'll be empty since it's a Monday, and I'm really down for some Kryptonian wrestling.