Hi Blondie! I used to hate moss because I did not understand it when I started growing orchids and that led to over watering and yes I lost a couple phals, however, l have found that it can be very good medium, at the moment I use it in a mix with bark and LECA.
If you are going to keep them in only moss I can only suggest to keep it loose to promote air circulation in the roots and to watch out for over watering, the best way to prevent it? don't water again until the moss is crispy dry
Hope the buds don't blast this time