I didnt talk about the moment of the game when you get out of the train, I was talking about the part where you exit the trainstation, and get a wider view of the Combine's oppressive regime (as you said, it was hinted throughout the station, but you dont realize the magnitude of things until you see the citadel tower).
The HL1 train ride is very nice, but you have to understand that HL2 is not a copy of HL1. Introducing another long tram ride would make vALVE look unimaginative and keen only in "milking the cow" that was the success of the original game. It's a good thing they are different. I expect and hope that HL3 will also be different.
And before I forget,
Unreal 2 is just a very good looking normal shooter. HL2 is a good one. It is not the same from beginning to end (you might need to play it again to remember)
There was only one part of HL2 which I would've liked to skip (some of the airboat maps) but there were many more in HL1 ("On rail" was long and tedious, and all the Xen maps were ugly, uninteresting and definately not worthy of the rest of the game
)
Interaction with objects in HL2 was a nice touch, and the grav gun puzzles were better than most of the crate-pushing HL ones.
Keep bashing HL2 and I'll keep posting counter arguments