Average out Goths as a civ counter or get countered

True, but those 30 2HS will seldom be in a position to force the Huskarls to fight, and any Huskalrs the Goths player actually loses in a fight, he can quickly and cheaply replace.

As you also mentioned, Goth Champs also overwhelm Mayan 2HS, so there is no winning with 2HS in any regard, unless you have a very lucky engagement.