Vanda losing leaves! HELP!!

[H.D]

hi all!
i recently potted my vanda in a pot with bark and leca because it was getting dehydrated. this was just 2 days ago. now it just watered it, and all the leaves except the ones on the top just fell off!

EDIT
i removed the remaining parts of the fallen leaves, and noticed that entire stem is gone. the whole crown fell off. i am very very sad.
i chopped off the stem from the base, and the basal stem is not brown, mushy.
the roots are good. will it grow keiki?
should i just throw it out?

[estación seca]

Vandas need a large amount of water. Bare-root Vandas need watering at least once every day even in humid climates. They can't survive high temperatures and low humidity.