I disagree. Most heliamphora species actually needs a good amount of RH%
Not enough relative humidity, especially at night, will not only reduce the nectar spoon size. Over time the nectar spoons will disapear. Also, not enough RH% will bring spotted or rusted pitchers. This will, of course, affect the plants.
I grow all my helis at 85%(95% at night), and i never had any problem collecting pollen.
Another problem about too low RH%, is the anthers. If the nectar spoons are affected, all parts of the plant will also suffer from the low RH%. This will also affect the anthers. They will not be fully developped, so the pollen extraction will be very difficult, or impossible.
nimbulan this is a minor grown at 25%RH
This is a minor grown at 45%RH
And this is a minor grown with cold nights, and very high relative humidity(95%):