Why are geos so op?

I did my alternate GAC today and my full gear 12 first order (Kru, kylo, hux, sith trooper, FOO) with 4 zetas got destroyed by a full gear 8 geo team with no zetas. I know CG doesn’t go by Lore but my God come on that is ridiculous. I know they can be countered by traya and all these other teams but in the early game most don’t have that and they are insanely op. I would not ever go against that team again even with fully reliced first order. Forget about Vader and JKL needing a nerf. Nerf geos!