The only problem are the 4 flags, I'm not sure if anyone ever figured out their meaning. But besides that the editor should work. Keep a back up and try it out.
@ryamyun I explained in my posts above how to fix it but well here's a version of suloku's tool that has this issue fixed so it overwrites all names correctly.
BW_tool.zip
I fear we miss a lot of them. Sometimes it's hard to get the QR codes because people cover them when they share images of Ga-Ole discs or the quality is to low.
Bulbapedia has lists of all the sets https://bulbapedia.bulbagarden.net/wiki/Pokémon_Ga-Olé#Release_history