The whole, I'm a "professional writer" thing is really no way to gauge anyone's opinion. Please stop, half of my family could have their careers described as such, and in no way would that make their opinions any more creditable, nor would they ever say, "Well I'm a professional writer and my opinion would be......"
I really have no problem with the way that the character's past was presented to the player. I do see how certain elements of the story seem to conflict with my preception of events that where mentioned in Kotor, but thats a reality I think anyone who has ventured into something like the star wars "EU" should be used to. The whole idea that it was this gravity generator that finished off the Mandalorians and not a real epic battle that tested Revan's tactical brillance disagreed with me, but tit was an event we still don't know everything about and I'm expected some sort of fuller explination in Kotor 3.
My probems with the plot exist mostly in the end of the game. The Jedi Masters all presented themselves to me like they had learned the error of their ways and where traveloing top Dantoonie to start to make amends. Then the whole Kreia thing happen and it really fell flat. Then her make up with Sion and really all the explinations of Malachor really justed peaved me.