I don't know what you've been reading, but if you have moved it to shade and let it dry for a while you should be fine. Here is my method for repotting Catts:
Day 1. a. Water the plant thoroughly in it's current pot.
b. put media in a clean bowl and add water. Let soak.
Day 2. a. Remove plant from pot, clean up and remove any dead roots or other.
b. Dust with Rootone if needed, or if dividing.
c. Place small amount of soaked media in pot, position plant and while holding it with one hand, add more media. Be sure to get media inbetween roots and under the plant to hold it up securely. REPLACE NAME TAG!!!
d. Place newly potted plant in cool (relatively speaking) shaded area and withold water for a couple of weeks.
Everyone has their own method. Some people don't pre-soak media, some people water after potting to settle the media...etc. So you just have to see what works in your environment.