People don't gave a crap these days. It's all about producing that next dollar sign.
I did have an interest in this very subject, and had fully planned on doing some breeding along these lines just for answers. I planned on son back to mom, siblings, and non siblings. Different temps during gestation, etc. until sometime down the road I hit this problem.
I still think for some reason, that though inbreeding early on may have contributed to this somewhat, I still find it strange that none of the earlier albinos seemed to possess this problem. Not until everyone on earth had to produce albinos as quickly as they could. Makes me wonder if this anomaly was introduced from another source, because of all the Albino pairings that have happened with no anomalies what so ever.
Not to discount the accepted theory, as I just ain't smart enough to present a decent argument. But if you think about it, Albinism has been found in cats, dogs, bears, deer, rhinos, hippos, baboons, monkeys, lions, and probably a whole host of other animals I can't list at the moment. Out of them all, you just don't see physical deformities. Blindness and/or deafness are usually the side effect, if any. Not visual deformities. So for this reason, I still wonder, and can't bring myself to blame a mutated gene for the cause.
But I can say, that people who will not cull said deformed animals, are probably the cause for the spread of this anomaly. Once a defect has presented itself physically, the genes responsible for normal formation are obviously mutated, for whatever reason, and just may pass on to offspring. Sorta like you can take an aberrant patterned animal, and selectively breed for that aberrancy until it is predictable in the outcome of the litter. (Dominant genetic stripes come to mind as an example).
That's my 2¢ anyway. Not having Aurora anymore sorta stopped my whole idea about proving, or disproving this claim. But you can't blame a "weak" gene like most tend to do. It's "weak" breeding practices that perpetuate this problem.