MrAntiFun will update his trainers when he can, if they need to be updated (ie due to the game getting an update). If it doesn’t need to be updated then he is focusing on trainers that do need to be.
Sunbeam’s trainer is outdated and will not be updated. He is retired from WeMod. Sometimes cheats are removed from newer trainers because they caused issues in the game, such as due to crashing or (very rarely) resulting in players being banned from games.
You’re welcome to make suggestions for new options in the official thread for the trainer. Tom Clancy's Ghost Recon Wildlands Cheats and Trainer for Uplay.