Meh... somewhat good news, yet underwhelming and not at all surprising (gotta make back that money somehow, right? Even if through unwary customers).
Many of us with the experience, and proactive proclivities to find the facts for ourselves, are likely immune to this type of potentially dangerous snake oil. As to your OTHER customers... not so much.
While REI appears to have [finally] arrived at the only correct decision (inescapable though it may be), I somehow doubt the packaging will show ANY warning stickers about using it for SNAKE bites, and I would wager as much!
We certainly shouldn't count on Sawyer's OWNER to make clear his product's limitations to the public (despite the scientific consensus), he's made his position quite clear! As to REI....