No prob, it's good to question!
Inbreeding really isn't that bad, even in mammals. It depends what traits are hidden; most loss-of-function mutations are recessive, because the functioning gene can make up for the non-functioning one. So, if an animal has some hidden detrimental hets (instead of the ones we want to see!) inbreeding can bring those out.
However, keep in mind that even if two animals were 100% identical (and sibs are only 50% identical), there'd only be a 1/4 chance of a given "bad" mutant expressing. The probability of seeing something bad increases with however many bad genes there are.
Anyway, there are, for example, strains of mice and cows that are highly inbred, to the point where more inbreeding is fine because all the bad mutations have been eliminated (although spontaneous new ones can occur)
When it comes to snakes, or any critter, you'd probably need several generations of inbreeding before you noticed any loss of vigor, unless the snake was hiding some kind of spectacularly bad mutation.
Anyway, genetics lecture aside, since the parents are not both albinos (in fact, neither is) I suppose it's possible that your animal is some kind of mosaic? Like, made up of two different cell lines.
But back to inbreeding; would be especially useful if the paradox albino was due to several genes working together. Anyway, it's a good idea to avoid inbreeding when you can, but it's not super-bad either, and useful when you're trying to establish a gene.