Greetings!
I don't know if it intended, but I find it very frustrating when my fainted sync gets revived when I use escape rope. As this isn't the case in the original games I'd like to suggest that escapes ropes teleport you outside of last visited Pokecenter with the health bars of the Pokemon in your party as they were before using it, and let nurse Joy do what she knows best.
The same applies for the Hoenn teleportation system.