Well here's what I think is not fair to Disney:
First of all, Disney was not the one overhyping this ride (though their advertisements are always a stretch of reality aka: TOT, RCRC, Alien Encounter, etc). We, or rather, some on here are the one's that overhype it. The people that are among the first to ride, come back and blow it out of proportion. It's not fair because then when you ride it and dont get what you heard in the hype, you think the ride sucks (not all but a few).
Remember when you go to go with an open mind. My recommendation would be to simply learn about what the ride is all about and not read the reviews.
At the same token, some say attractions suck when you may like it if you didnt have a preconceived notion. I personally didnt think Stitch was that great but I did think it was cute and completely undeserving of the label of people bashing it.
I think Soarin is great, personally. However, it does not live up to the hype. However, look at it without any preconceived notions and realize how spectacular that attraction is.
Anyone that says it is no good is really not pleaseable because you dont find attractions like this in very many places in the entire world.
Remember, not everything has to be scary, or thrill generating to be great.
Is it overhyped though? Absofreakinglutely!