mounting orchids is easy and fun if you are willing to give the plant the extra watering it will need.
Phalaenopsis naturaly grow down from branches.
The shape of the leaves is graceful and the leaves grow in a sprial with each new leaf covering half of the old leaf and half exposed. A perfect survival technique.
The plant can not get water in its crown so crown rot is non-existent. The top of the leave mounted like this is not light sensitive. My mounted phals take as much or more light than my cattleyas. The bottom of the leaf since it gets only bouced light in nature is super-sensitive, hence it burns in pots.
Since the keiki roots have never been in a pot you can mount it bare root. I have one (test plant) mounted that way. I find it is very slow to grow. It needs more watering and more fertilizer than it is getting. Plan to water daily if you mount bare root. have a phal plug seedling (test plant) that is mounted with sphagnum moss to keep the roots wet and it has grown faster.
I have mounted many full size flowering phals and really love the look.
If you are up to as much as daily waterings than you should like the results. They water easily by dunking the entire plant in a bucket of water. They can also be held under the sink.