Both Bassovola and Cattleya mount easily and I do not know of anything about these species to think they are unique.
I always put sphag totally around my roots. This allows the plant to grow as if it were still in a pot and as it develops new roots the roots will be on the outside of the moss and the roots inside the moss die off.
This method saves about 6 months of growing time. That is the time period the plant will loss its old roots and then start to develop new roots, if you had placed moss only under the plant.
Spraying is adequate for watering mounted orchids. They probably can get by with a good soaking (by hose or sprayer) 2-3 times a week, not 4 times a day, but you almost can not over water a mounted orchid. You will find better results if you wet the plant and then water again in a few minutes. This gives the moss time to absorb the water and the next watering will penetrate deeper.
This mount of Sogo Doll went from a two inch pot to flowering in six months. Without the moss all around the roots the new roots would have just been starting. The plant probably would take another year to flower. All the roots you see in the photo are new. If I were to remove the moss I would find that the old roots are dead and gone. Therefor, I do not see any gain by not wraping the roots.
