I’ve seen this over in CS, and this is often the response:
Feel free to search or even post in CS in the hopes a rep may answer you but I think that it is true, they are hands off, they have created a system where you can dethrone, IF your rank is high enough within the guild. Rank 1 thru 3 I believe this is where you can use the system to dethrone.
If you do not have one of those ranks, you cannot.