No, I'm just trying to figure out why a story where the only thing that happens is getting everything back to the way it was matters in the grand scheme of things. Unless the next movie makes some very big point about Khan or Pike's death, Star Trek Into Darkness feels like a completely skippable story. You could say that in the end of Trek09 that they were beginning their five-year mission into deep space, and they just happen to have Carol Marcus onboard as a new crew member. That is of course depending on if they bring her back. If they don't bring her back (and really, who's asking for that?), that makes skipping STID all the easier.
When dealing with sequels, I agree that films should try to be their own thing, and the Wrath of Khan certainly works even if you haven't seen Space Seed. Here's the difference though when it comes to Solo's argument. The Wrath of Khan wasn't trying to act as a different entity from TOS where everything that came before it didn't matter. The Wrath of Khan is a true, bona fide follow up to Space Seed and even acknowledges itself as such. And that's exactly how Trek09 portrayed itself as a true continuation of the Star Trek storyline. Trek09 is what happens after Nemesis. So how exactly is the argument that STID is a completely separate entity that doesn't reply on what came before it's direction is no different than the previous follow ups that came before it?