First of all, it's Orchiata, with a "t", not "d". The name is derived from the fact that it is for orchids, and is derived from Pinus radiata trees.
Yes, it may be used interchangeably with other barks, only it will degrade far more slowly, supplies calcium and magnesium, is a lot airier, courtesy of the very uniform grading they do, and may need a little extra help initially absorbing water.
I recommend pouring boiling water on it, and letting it cool before use. Do not soak it, as that extracts the dolomite they use to stabilize the pH, and supply the Ca and Mg.
Cymbidiums really aren't "terrestrial", as in "growing in dirt", as much as "semi-terrestrial" growing in humus. They'll do great in it.