Actually, there's another LARGE plothole in STII:TWoK:
Chekov (using the Reliant's sensors) somehow FAILS to notice that Ceti Aplha VI blew up (we're somehow supposed to believe that the debris field is somehow obscured from his sensor scans and futher - that the explosion of Ceti Alpha VI managed to push Ceti Alpha V in to the EXACT same orbit Ceti Alpha VI previoiusly occupied??!! (ie the Library computer didn't indicate all these discreptencies about the Ceti Alpha system as the ship approached)
All that said, the REASON STII:TWoK is so enjoyed (even with the plotholes) is because of how the characters were written and portrayed - and good execution of the better/stronger elements of the story as a whole.)
Well Reliant was a small ship, maybe they didn't have all the Ceti Alpha system details in it's computers to save memory space. good point
come on my english ain't that bad! I said I think there will be a plot hole because Iconian are said to be more advance so if they come back willl see what happen and the writter better be good with this.
beside they have to explain where were they and what hapen all this time and that is hard to come up with a good one