I've heard the same thing, higher temperatures will promote flowering. This plant biologist at UConn, a CP expert, mentioned this to me. I grow mine at 80-85 degrees F and get flowers regularly.
...at least I see the buds, and see the closed flowers with petals, and I got black seeds from them. But, I'm still having a problem actually getting them to open, or at least witnessing them open. Maybe they are only open a few hours a day? Plus they are at the top of my aquarium, it's difficult to look down to see whether the flowers opened or not without removing the light fixture, etc.
Now, germinating the seeds, that's the tough part I've been told! I've had no success.