This article intrigues me greatly. It never made sense to me that Squall survived the impaling. And the ending all ways perplexed me. My friend hated it because he felt the ending packed everything up so sweetly with deus ex machina. But even if I approach the ending from that perspective, it still doesn't make sense.
This idea that most of the game was all a dying man's dream deserves some more research. I've been wanting to replay the game for a bit now (basically since Jeremy Parish started frequently posting about it on www.toastyfrog.com). I've all ways enjoyed the game, but couldn't really figure out why. Given the opinion of the vast majority of the internet, it is because I was an immature teenager when I played it and thus had poor taste in fantasy and storytelling. I've never bought into that, but never spent the time to come up with a counter argument.
I will definitely keep the theory in mind when I make another playthrough in the coming months.
As for whether it is what the developers intended, you shouldn't concern yourself with that. It's all ways interesting to find out what the author wants you to read when you read their works, but ultimately it is the reader that decides what any story is truly about. Even if this means its genius is an accident.
On a related note. Who is duckroll? I know I've heard of him/her before but can't put my finger on where.