You're still dealing with the same bloodlines however (albino is the same as it was in 81 when it was brought in by Crutchfield-there haven't been any other strains of albinism in the US at least) so I don't know how there would be some drastic change in temperament amongst the same imported lines in the last 30 years. Perhaps you had a clutch or two in your area that was produced from some aggressive animals or something of that nature. I'm sure there were angry animals in the 70's and 80's as well. It's like the argument in Ball Pythons that darker morphs produce in general, more aggressive animals. I just don't buy it. There's been nothing that links aggression to pattern mutation in any species of snake for that matter....health/nuero issues yes, but not aggression.
I'm sure your experience is real but I don't know how you can't be excited over adding new genetics to the pool when there's relatively few choices to begin with. You can't own a handful of Burms and then decide the entire attitude of the species changed in 30 years because you had a few bad eggs though.
If you ask a few breeders if the albino shows a better temperament vs hypo vs green (or whatever) I would doubt if they implied there is.