I followed your advice and removed the AddOns from OneDrive. There are a couple of steps you should add to your list (I know you don't have it cos you're on a Mac).
1. Copy the AddOns folder (Copy instead of Cut in case something happens while you're doing these steps)
2. Go to the location where you want to place the AddOns folder (e.g. C:\Users\<your name>\Documents\Elder Scrolls Online\live.
3. Paste the AddOns folder inside the live folder.
4. Now disable OneDrive for the Documents folder. If you disable OneDriveto starts, you won't be able to retrieve any files and/or folders that are stored in the cloud.
5. Open Minion and select the Options button.
6. Click the folder icon and point to the new AddOns path from step 2.
7. Open ESO and once in the game select AddOns from the main menu to ensure all AddOns & Dependents are seen by ESO.
When I did the above and then used Sid's site, I still saw a couple of issues (see
https://sir.insidi.at/or/logviewer/lNXuYL) but certainly not as many as before. It shows a
LibMediaProvider-1.0" is missing (reason: outdated) message even though I confirmed it is there and even re-installed it in Minion.
Progress!!!