We have the technology for at least 6 concurrent alliances (A-F) (BA/Eureka thread)

[Rongway]

In the end, the terminology is not really the core of the issue

It's always a good idea to use the correct terminology when asking the devs for things.
Q:"Why can't we play together as six alliances?"
A:"What do you need 144 players for?"
It might sound absurd to you but worse misunderstandings have probably occurred over people actually using correct game terminology in their requests.