As I asked before, what is the source for this information?
I read it somewhere. Probably on Doug Drexler's blog, I don't really remember. All I do remember is that the info was from an official source, as I'm not in the habit of posting hearsay without knowing if it came from a credible source. Take that for what you will.
You mean they did all this so that Data could push Beverly in the water? Wow, talk about big causes, small effects...
enterprisecvn is spot on. As Worf's promotion has nothing whatsoever to do with the rest of the story, the scene is indeed just setup for Data installing the emotion chip, which in and of itself is absurd: you mean that after 7 years and Joe Piscopo, Data
still doesn't understand the concept of humor? But wait, it gets worse. So why did Data need to install the emotion chip and have it go haywire at this specific, particular time? So he could be incapacitated when Soran kidnaps Geordi. But...why did Geordi need to be kidnapped in the first place? Oh yeah, so Soran could torture him about trilithium. But wait: Doesn't Soran already know about trilithium? He already launched a probe containing the stuff into the Amargosa star, and the rocket on Veridian III presumably also contains it. So why is he asking LaForge about trilithium? Yes, the Duras sisters do have the foresight to tamper with his visor to get the Enterprise's shield frequency, but that's only because the writers needed a way to get a puny 20 year old BoP to destroy the Enterprise so they could reuse the footage of same BoP getting destroyed from the previous film!