The media density wouldn't be an issue, unless it rains a ton or you over-water. I'd say wash the coco peat a lot of times before use, however, you are in a bit of trouble with choosing a bical as your first nepenthes and immediately having to repot it again, since that species has very sensitive roots.
What I would do is this: Have entirely rinsed media on hand in a different (and fairly large) pot, and very carefully dig out your bical, attempting to disturb the roots as little as possible. Then, rinse the media attached to the roots of the bical by pouring distilled or rain water over it, being gentle as you do so. Use at least 2 liters of water to do this, as a gentle, waterfall stream. Then, pot the bical in the large pot you have prepared with already rinsed media.
I advise using a large pot, because once this species recovers, it grows relatively fast, and you want to be able to avoid repotting it again for a while. Expect your bical to stall a bit for a few months (a result that likely would happen just from the first time you potted it anyways). Give this plant partial shade, or the leaves will burn (turn a sickly yellow and brown, and be unable to make food for the plant). The media it grows in should remain moist to the touch, but if you poke it, you shouldn't see water on your finger. The pot needs to drain well. You sure didn't go easy on yourself picking this species as your first nepenthes.