Alliance seems fine to me. It’s pushing GW to another step.
We can imagine treason (ie one guild didn’t change their defense and just take advantage that the other guild low his defense), spies or whatever.
And that’s why it’s interesting: devs gave us GW and we can go further by adding Guild Diplomacy where you have to deal relationship between guilds. And it could show where devs have to go. What some players want to. Because I’m sorry but GW are just 30 “PVP” battles so nothing new in terms of gameplay…
So yeah, some players decide that GW should be like sports. Why this analogy? It’s not Guild Sports that we have, it’s Guild Wars. It seems you have a point of view and then find a good analogy that fits it and uses it as a proof. GW is like X, in X context, alliance = cheating so in GW context, alliance = cheating.
About sister guilds:
Guild Wars today force us to put the worst defense to stop the invaders to make more points (it’s maybe true only in the first brackets). Not funny team. Not challenging team. But trolling team composed generally of some unbalanced troops (cough cough Famine).
Do you really think that sister guilds want to force their friends to fight against another Deathknight/Famine/Death/Famine? You’re talking about competition but if there is no competition between two guilds, I don’t see why one player will have to put an horrible-to-fight defense team…
About the 10-guilds alliance:
It is a extreme case. We can just assume what happens if these 10 guilds have the same points. Another parameter could be taken into account. Or the rewards can be split (ie 150 gems for the 10 guilds better than 1,500). There is way for devs to counter that.
But I can understand that devs are afraid of this situation and that could be the reason why they didn’t give a clear “okay” to alliance.