your deck plant certainly has healthy leaves on it. what night and day temps did you get this summer, regularly?
my plants grow year-round and have 12 inch, healthy leaves. I don't give them dormancy, but the key is giving them a drop in temps at night i think. The guys at sarracenia northwest grow theirs year-round outside through deep freezes and their plants are as healthy as any, though the plants die back in the winter to the roots. That's Oregon, zone 8.
used to keep mine indoors but that hurt the plants during periods when temps wouldn't fluctuate even in the evening
also, getting the plant somehow is key to getting new growth from what i've seen, but only in combination with not-too-hot temps
i'd say grow it like a sarracenia oreophila with optional dormancy. responds to temps similarly from what i've seen