Agree with the OP. BRD (and Blackrock Spire), to me, represent some of the best dungeon design in WoW. I liked that they felt alive, that they were more open and gave players many options as far as how to navigate them, which bosses to kill, etc. BRD especially just had such an epic feel to it.
The dungeons, starting with TBC, turned into hallway cattle chutes. That said, I can understand why newer players would be frustrated by the design of BRD especially if their first experience was the shorter dungeon design that we had in later expansions.