My apologies...I can get overly Socratic. I should know by now this group does that not so much.
But the larger point I'm trying to make here...
No sighting report (with the likely exception of the PGF) is proof of Bigfoot. They are not nothing though. Collectively they are a pretty big something. What you get out of them though is only what you put into reading them, and this is but one example.
I was privileged enough as a young man to have the tutelage of a number of very talented legal practitioners who taught me this skill by example. (I've also had any number of juries double-down on that lesson and school me the hard way) Those lawyers could read the same deposition, expert witness report, medical chart or other bit of evidence, and while it would warrant only a shrug from me, they on the other hand could pull out any number of unassailable inferences and conclusions. While the sighting reports are not sworn, they are testimony and they are vulnerable to giving up their consistencies and inconsistencies in exactly the same way.
So, you can read hundreds of these things and only get as far as, "He said he saw a BF, but that is not possible, so nothing else in the account is worth examining". This is where most of the public, most of the scientific community and many members of this Forum land.
Then, you have geeks like me and a few others who are never going to be satisfied with such an unexamined conclusion. I'm not claiming to have some super acumen, I'm only emphasizing it is learned skill that won't just happen. You have to be intentional about it.
The question I always want to ask is: Once you get past the obvious details that any hoaxing witness could provide (i.e. "I saw a huge bipedal hairy thing with white hair that stood and stared at me...) can you find other, much more subtle details which a hoaxing witness is very unlikely to either think of at all, or find the need to include if he did. The report in the OP fits that description for me.
What the reports describing an albino creature should trigger, I believe, is some consideration of the congenital traits associated with albinism and some of the genetically related syndromes associated with the recessive gene inhibiting melanin in mammals. I mentioned only a few above. Things like deafness, poor vision, hypermobility of the joints, etc. All of which are subject to some conjecture, I grant you. Still, if you stop at "that's impossible", you wall yourself off to a huge trove of supporting observations.