The reclassification was done more than 40 years ago if I remember correctly, and sanderiana was/is the sole representative in this genus and Euanthe is generally ignored by both breeders and hobbyists. Imagine the confusion that will ensue in the whole vandaceous section if everyone were to use Euanthe and Vandanthe..... Incidentally that is not the only controversy concerning this particular orchid - there was also one where there were lots of argument on whether it should be sanderiana or sanderana. The 'i' must have won. ( or sanity prevailed ).