Afraid to repot phalaenopsis after a bad experience

[Maxy24]

Do you know the rationale behind this practice?

I know with cacti you wait a couple of weeks so that if any damage was done to the roots it has plenty of time to dry, callous and start healing before you get the wound wet. Wet wounds lead to rot. But phal roots are so large it seems like damage would be obvious, so if you don't damage your roots there would be no reason so wait at all. Plus I don't think rot is nearly as easy to cause in orchids as it is in cacti.