I guess I agree. She did seem nice but rather dry. There definitely wasn't much background information for Rosa, and definitely not enough characterization. But I would agree that it's a fault of technology. If such a thing were to occur for more modern games [like FF VII and beyond for example], there would be no excuse other than poor scripting and execution. When it comes to a character like Aerith, I really don't understand them as a whole. I really didn't feel that bad when Aerith died.