Copied over from the members-only section of this board...
True enough. Troika did a lousy job on the clan Histories, probably because they were being rushed and they simply didn't have the time to play-test them all. In my estimation, about half of the Histories are working pretty good, but the other half are broken to varying degrees. So yeah... that's why Troika ended up disabling the Histories, when Bloodlines was finally released.
So... why didn't we "fix" the Histories with the True Patch..? The answer is somewhat complicated, but it boils down to a few reasons. The clan Histories are optional, for one thing. And they are largely subjective in nature. All of them involve boosting one or two stats, in exchange for crippling one or two other stats. So, which stats should we choose, when we're setting up one of the Histories..? Like I said -- it's largely subjective. Furthermore, every single History would require extensive play-testing, in order to be absolutely sure that none of them caused the player character to become overpowered or under-powered. The time involved would be prohibitive... which is no doubt the reason that Troika never finished tweaking the Histories in the first place.
In the end, I decided that editing the clan Histories fell under the purview of a mod... not a patch. And since the True Patch is not a mod, but is indeed a bug-fixes-only patch, I felt that any changes to the Histories would be inappropriate. If anything is going to be done with the numerous clan Histories, then that work should be left to competent modders.