Zenon and Golden weren t in a regiment of a EIC, and Barvit, 18e left so no regiment normally...
Golden was obviously in the KKA roster. And Barvit in the 18e. Idk about zenon and can't find the roster doc.
And:
Whether a reg disbands or not is not a condition stated in the rules. Surely that would defeat the whole point of the rule.
The rule is there to prevent people from regiments (that no longer have a chance to win) joining a regiment that does have a chance to win.
Regardless of whether their original regiment has disbanded or left the tournament. Otherwise regiments could leave the tournament when they see they have no chance to win and thereby circumvent the rule.