I just took my cattleya out of the pot to check the roots. They all seem dry/brittle.

The plant is putting out a new stem, though. Here are the pictures, before and now.
Seeing that the roots were dry, I put TakeRoot rooting hormone on them before I put my orchid back in the pot. Then, I logged on and saw this thread, which says it's too strong for orchids:
Root growth hormone
Any advice on caring for this orchid now? Seems like I need to water more frequently. Anything to help it recover? Move to a shadier location, anything?
Thank you! I really want to keep this one going, it was bought together after a fun day at an orchid show!