man i wish i still had the fight in me to just go and counterpoint left hook all this, but i just don't got the dogs barking anymore.
Story and Gameplay being considered seperate gameplay elements means that the game has failed, and that's why I like good RPG's as they weave the two elements together. The story is told through the gameplay elements, which is what Obsidian and Troika excell(ed) at. Planescape wouldn't be a good novel, it'd be decent, but as a story told through the medium of games, using the tools of the medium, it's the top of its class.
The technical quips are just a result of too much complexity, simple as that, if you want the game to be 'dumb' in rpg terms, turn it into a shooter ala Mass Effect and you'll be relatively bug free. It's why Modern Warfare is relatively clean as a whistle compared to Fallout 1