Ah I see, I must be mistaken in what 'original' means xD sorry about that, I assumed it meant kinda unimaginative.Yes it has some rather 'unoriginal' Pokemon in it but so does gen 1 and every other gen has had it's down moments.
1st gen Pokemon aren't unoriginal for the simple fact that they were the first of their kind. It's hard to rip off something that didn't exist yet.