ALL my orchids in the GH are misted in the morning around 7am before I go to work and in the afternoon when I get home, in fact, I do it before I even get out of the work clothes so that they have a chance to evaporate the excess water of before they go bye byes.
If you look at the Tolumnias they are extremely healthy, as is the Doc.
We are mostly in single digit humidity here in South Australia, which is why I mist the orchids twice in the GH and that helps boost humidity up to around 50% to 60% at night, which is what most epiphytes need in the wild as a minimum to survive.
They depend on humidity or fine mists blown across the mountains at night for their moisture needs and absorb them through the roots, hence the size and quantity of roots that plants like the Vanda Alliance grow.
I have a 2 litre hand pumped garden sprayer that I fill with rain water and that does all 300 plants in the GH. I have a 12 volt car fan going 24/7 for the air movement and to simulate the breeze that the plants would likely experience in the wild.
I spray a fine mist just in front of the fan aimed it the same direction, and the plants get misted by the breeze created by the fan similar to what they would get in the wild.
Haven't lost one yet and they seem healthy and happy.
Maybe it is worth an experiment on one plant that you could afford to use as a guinea pig and see how it goes.
The Tolumnias and Docs do get a good spraying morning and night due to being mounted on cork and the drying effect of the fan and relative temps in the GH. But the potted plants just get the spray effect I spoke about above.