Since I'm the one Boggyboy is quoting I'll chime in here. There are times when the plant looks great, but it and really all flytraps are a bit more finicky than people tend to admit. For instance in my conditions my coquillage plants didn't do well, they still grew, but where nowhere near on track with the other flytraps. I'm guessing it's an anomaly. And by no means do I say the cultivar isn't worth it or not what it's cracked up to be.
It just happened to not work out for me. Which happens with a plant or two, here or there . Another consideration is an allocation of resources, I focus mainly in sundews, so if a flytrap is not doing well I don't have the time to give really any extra attention as they're not my niche. I'd rather it be housed with someone who can give it exceptional care.