Hybrids with Euanthe sanderiana parentage

[cpeters5]

Hope this is not too far off topics. I am confused by hybrid genus naming and hope someone here could help.

Since the accepted name of sanderiana is Euanthe sanderiana, what should be the correct naming of these Vanda hybrids with sanderiana in the background? I understand that Euanthe x Vanda should be called Vandanthe, but I rarely see this name being used...

What do you think?
pax