We also hate this advertising scheme!! Remember that we must try to emulate their natural conditions as much as possible, freezing water is not what they get from the rain!!
Try to think abut it like this, would you like to hold an ice cube in your hand for 3 minutes? They don't either!!
They like water with a nice temperature, even a bit warm (when its cold).
About the new media... did you soak it before repotting? It's important to soak the media thoroughly so it is already saturated when you use it and the water actually goes to the roots and is not absorbed only by the media.
Don't worry to much!! We all have killed one or two (or many more) orchids in the process of getting the hang of it
!!