The designer added the Phalaenopsis (often referred to as "Butterfly Orchids) last.
Each bloom has to be wired individually since they are cut from a clustered stem and have very short laterals from each bloom.
Taping the wire with floral tape gives it a "stem"' to use to insert into the bouquet holder.
She added the Phalaenopsis orchids last, carefully handling them. You may want to mist your fingers with Finishing Touch so the oil on your fingers do not discolor the delicate white petals.