Pip, I have not looked at the profiles, but can tell you that it isn't a case of all the managers except one approving. All it takes is any one manager to approve for each of the profiles involved in the merge.
Cari, please heed Patricia's advice well - she REALLY knows what she's doing and has a lot of experience trying to sort out messy and complicated merges. Again, I have not looked, but if Patricia says there is conflicting details, then that should be resolved before the merge is completed. We need to be very certain that it is correct to do a merge before actually committing it because that is about the only action on WikiTree that cannot be undone and it is a very big job to fix it when it turns out that there are (or sometimes should be) two different people whose profiles were merged.