Not really dumb moments, but...

...making Cid look like Robin Williams in appearance...

...and making Zell supress his sexuality (because, you know, we can have gay couples in books and TV shows and movies, but it's disgraceful to have it in a game,even one aimed at teenagers)...

...and not making Quitis do anything with her whip...

...and making Dr Odine the only German person there amongst a bunch of Americans...

and making Rinoa go after a bastard Squall when he clearly doesn't love her, let alone like her, when she starts making her stupid advances.

That's all i can thik of at the moment.