Yes, but there was Mickey, and Riku eventually.
I think we've come to an agreement on this. But still, Xemnas took desperate measures towards Roxas, unless he knew for a fact that destroying him would bring back Sora, or that Sora would be useful even without his memories (which is not too farfetched since we're talking about Xehanort [kinda] here)
And yes it was, but if he needed to start it back up he could have. The risk was in the fact that the replicas weren't as controllable as they believed they could be and had wills of their own.
Indeed, the necessary technology should have been in his possession ... Maybe he just gave up on it after witnessing how out of control Replicas can be? (He shouldn't remember Xion, but there's still Riku-replica)
I do want to point out that while these are nitpicks, KH2's problems often come down to making a lot of small mistakes. Yes, small mistakes are smaller than big mistakes, but when you have a thousand holes in the hull of the ship, you're going to take on just as much water as a few big holes. Nitpicks are completely valid as far as I'm concerned, and should be treated as less consequential, not inconsequential. There can't be a grace range for mistakes that "don't count" when games like KH2 abuse the grace range to make small mistake after small mistake after small mistake after small mistake...
We'll have to disagree here, most of his "nitpicks" can easily be answered to from the game itself (more-so in FM), so they're kinda "inconsequential" in that way.
KH II has writing issues, yes, mostly due to the poor pacing; but I still have to see real incoherence/ inconsistencies in the plot. It would also be great if we could give concrete examples of these "mistakes".
For example, here are some upsetting things (mostly because they lack any form of explanation as of yet) I can think of throughout the series:
- Where KH truly resides: is it an inter-dimensional being? Does it move around? (RoD/ KG)
- Unversed/ unbirth's true nature: I know it's negative emotions given form, but why is Vanitas the only recorded instance of this ever happening?
- Terra-Xehanort's memories.
- Kairi machina hug: can be chalked down to princess of heart magic.
- Hollow bastion's keyhole: how is it connected to all the different worlds' borders, the princesses of heart and DtD? Why does it emit so much darkness? Why was the castle spared in the first place?
- KH: is it really light, and only light?
- Memories' real nature, where it resides, and how it transfers to a Nobody.
- Xion challenging Roxas: couldn't she just end her own life?
- Xion's last request: as I understood it, although Roxas was doing what she asked, he was too rash, and she had to stop him somehow.
- Ansem being Xehanort: I personally don't see this one as a problem, but it's brought up so many times by the fan-base so ... In KHI, no one could confirm ASoD's identity whereas in KHII, a third party (Ansem's friend even) revealed the truth. Unnecessary, maybe, incoherent, not so much.
- Kairi's keyblade: or is it?
- AtW's deus ex machine: he did say anything could happen, but does that excuse anything? No. Does that make me feel better about the whole thing? A little.
- Riku not being able to open a dark corridor. Mickey: you do not belong to the dark side anymore (or something like that); me: and Namine (...) does? And yet Riku can still use darkness in battle ... Or maybe that ability came from the fragment of Xehanort in him.
- Namine (...) overwriting a journal's data (or memories? Not sure ...).
- Time travel: It was explained really well, and was nerfed to the point it doesn't break the continuity of the series; however I can't shake the feeling it wasn't really needed ...
- The inception dreams: why are there sleeping worlds in Sora's dreams? Or is he dreaming them as he himself visits them? This might have been already explained somewhere though ... I also haven't played the game, so not much to say here.
All in all, the series is riddled with plot holes; however, because of this we can have discussions, theories, etc ... which is a good thing, at least for me. And who knows? Maybe one day we'll have answers (or maybe we already got some of them, and I'm just unaware of it).
Personally I'm of the opinion that no story should include teleportation unless it's dedicated to the consequences but... too late for that. Since there are free-range teleporters in every game in the series (Maleficent in KH1), it's a dash against every game in the series, but I think the minor enemies are excused.
I think so too, dark corridors invalidate the very existence of the world barriers. What good is it if some people can just waltz through? Keyblade wielders having a way around it, I can understand; however, if control over darkness is all it takes, how come other worlds' existence is known to only a select few? I do understand the villains need a way around worlds too, to do their villainy deeds, but this still bugs me.