One thing that should be stressed is that not all dried moss products sold for orchid cultivation are necessarily long fiber sphagnum; in fact, it is more of a rarity than not, even today. When I purchased dried sphagnum from Lowe's in the past, it was always marketed as Chilean-origin LFS.
Perhaps it is simply repackaging? I cannot tell from the photograph. I would also stay away from any Schultz products -- which may contain some fertilizers, "special mineral" additives, or wetting agents . . .
My favorite compost for most Nepenthes involves, by volume, a 2:1:1:1 mix of live sphagnum, along with pumice, perlite, and fine orchid bark. The compost is long-lasting, airy, and not easily compacted. Barring that, I've grown many others in live sphagnum only.
To add further insult to injury, I also water most of the Nepenthes -- in orchid pots or net pots for the most part -- via the verboten shallow tray system without loss . . .