Autumn into winter but tons of new growth! Wrong time of year?

[reliablefool]

Sooo, this is my first autumn/winter with these neofinetia falcata plants and they are all in active growth. A lot of new roots, extending roots, and new leaves on my three plants. The smallest one is struggling a little...I think I've been letting it get too dry for its size (One small "adult" fan that has lost some leaves due to my underwatering and two very small baby fans). Anyway, I'm wondering how I should handle this since I grow them indoors on my windowsill and they've kicked into high gear instead of slowing down. Any advice would be appreciated! Is a winter rest needed or is it mainly to help them bloom? If it's just for blooms I definitely won't be putting the tiny one to rest.