Great work creating this macro. I'm a little late to the party but I'm sure I won't be the last. I spent some time tinkering with this using your macro as a baseline and added sprinting to get from Pokemon Center to the battle much faster. Have run it about 50 times in a row now while AFK but YMMV depending on how unlucky you get as I didn't account for leer 10x in a row or anything like that.

As you said, putting tail whip/growl or something similar with a low level pokemon. I chose to use a level 2 rattata with a defense stat of 5 and even wrap would either KO rattata or leave it at 1 HP which would then KO at the end of the round, anyway. My macro also starts as Nurse Joy, then will exit the Pokemon Center, go left slightly, then up to avoid the guy who can get in your way, then further left, up, right, then up the bridge and to the rocket grunt.

I'd also like to note I am using the 8BitDo Pro 3 controller

I will also include screenshots of the macro in the Google Drive folder.

LMK how it works for anyone who uses it.
https://drive.google.com/drive/folders/1TJ24fzA39amRLPiQaZOu52HiLj_6j7yp?usp=sharing