TL;DR: The wiki looks like someone simply ran s/Aether/End/ (improperly) and left it at that.
(For the non-technical people: "Replace all occurrences of 'Aether' with 'End'.")

https://ecocitycraft.com/wiki/index.php?title=The_Builder's_Getting_Started_Guide#Part_Three_Point_One:_Ranking_Up

I doubt that.


https://ecocitycraft.com/wiki/index.php?title=Server_Rules#Clause_1_-_Griefing

Do we even have a section labeled like that...?


https://ecocitycraft.com/wiki/index.php?title=Server_Commands

Uh... no.


https://ecocitycraft.com/wiki/index.php?title=Worlds#End

I guess players can come up with creative killing methods?

"Aether" appears to be a new synonym for the End. Oh, let me just ask ten random players to join me in the End because PvP is disabled!

How strange, something tells me that might not be the case after all...