I grow my Phals differently here, I water the root zone thoroughly, then let it drain. The roots are thick, so it likes to dry out fast. Keeping it too damp, may invite rotting. So it is advisable to use containers with side holes. Or some would just mount the orchid, but will require more frequent watering. I do not bother misting the leaves either, helps save a step keeping the crown dry. Or if I do ever accidentally have water by the crown area, I quickly dry it off with paper towel. Growing them indoors does not accord the usual heat and wind that will facilitate faster drying time, so got to be careful to protect the crown area. I also water early in the day, never at night.
Usually, when I repot, and if I have to use bark mix, I presoak it first overnight before I use it. Some don't, but I do it so the roots have some moisture right away, and first few weeks, I have to dunk the root zone and let drain, since the media as you observed dries out fast. I also try to lean the plant a bit to the edge, it likes it that way, keeping the roots below the media and the other end a bit above the media. It will also grow aerial roots, so I just spray those ones when it does make some.
I also run our ceiling fans or open our windows weather permitting for air circulation. You mentioned the flower stem is brown already, if it is dried out, cut it off, so your plant can redirect its energy to forming new roots/leaves.
Your plant will be adjusting to your current environment so sometimes it takes awhile to see it grow actively and if it has just recently bloomed, it maybe on resting mode, so just have to wait patiently for it to start growing new roots and leaves.
Have fun!
