You are right, you should be very careful about this species. They don't like stresses and have a hard time to recover, otherwise dowianas grow & bloom just like other Catts.
The divisions do look fine and I hope they have a chance, but you can never be sure about this pseudobulb rot. Nasty thing!
Anyway, it was my first dowiana to bloom. I have another dowiana in bud, this one if from Costa Rica. It should bloom in a few days. Then I'lll start a new thread.