Whether that’s the case or not, it’s clearly something the Blue’s regard with concern.
I’m not sure I’d be so sanguine about player conduct that may not explicitly break ToS, but that undermines the integrity of what’s clearly intended to be a (2) faction game, with the factions competing against one another.
Cross faction collusion isn’t something that’s necessarily an issue in the minds of the developers. Cross faction collusion where one faction uses the opposite as a cudgel to antagonize and grief their own faction clearly is something the developers are concerned about as Kaivax explicitly says ‘don’t like to see’.
It’s easy to see why given the extremely toxic game play it creates internally for a faction.
If your an Alliance guilds that wants to grind out Scarab Lord week one and prevent all the other Alliance guilds from doing so before you turn in all the war effort materials…there’s nothing wrong with that.
An Alliance guild or guilds who go to the opposing faction and create an agreement wherein the opposing faction (Horde) will repeatedly ignore protected Alliance and will kill everybody else (at the behest of the Alliance guilds in the protected coalition) is fundamentally against the spirit of what Classic WoW was.
If nothing else, Classic WoW is basically a case study for ways in which you shouldn’t design a game (or elements of a game) because people act like high-functioning sociopaths and then brag about it.