Well, for me, when I use the Kew World Checklist of Selected Plant Families to look up Ascocentrum curvifolium, I see Vanda curvifolia as the accepted name. For Neofinetia falcata I find Vanda falcata as the accepted name. Similarly for other species of Ascocentrum and Neofinetia. References given there for L.M.Gardiner, Phytotaxa (2012), though the Vanda falcata reference is much older.

And the RHS International Orchid Register does indeed list your plant as Vandaenopsis Prapin.

I did remember incorrectly where Sediea is concerned. I think there has been some move toward making it a synonym of Phalaenopsis, but Kew doesn't seem to have jumped on that yet.