Is DeRoose Nepenthes Soil Mix Acceptable?

Your plant is deRoose's Alata (N. ventricosa × alata) × alata—a vigorous, beginner-friendly hybrid. The chunky, coarse peat is DeRoose's professional-grade medium. They produce hundreds of thousands yearly—it works for their system.

No need to change it. If the plant is healthy and pitchering, the mix is fine. When you eventually repot, you can transition to your preferred recipe (e.g., long-fiber sphagnum + perlite + bark).