So as it was stated I think somewhere in this thread, changing guild names has been removed because something something pretty sure having to do with like why make it if you don't want that name, and a good reason to explain this is because people change their minds. I personally think bringing it back will solve/help Graal and the People in 2-3 ways.

First way: It gives people as I said an option to change their mind, this is beneficial to the Graalians.

Second Way: People spend gralats, people buy gralats. Being able to change a guild name would give the incentive to buy gralats to change the name, now this would have to make some profit at least a little. Now would this mean less on buying guilds? I wouldn't be able to answer this, but I think it would work. No? This would be beneficial to the game itself.