Either Saonel or Pirina can win alone due to superior stamina, considering this allowed them to fight against Ultimate Gohan for some time. Whilst I'd say Caulifla should be stronger with SS2, it won't be enough to bring them down if they can last a while against a SSB tier character.
Caulifla is tiers below Gohan, who exerted extensive effort to beat Saonel/Pirina whilst being supported by Piccolo. Caulifla would need Super Saiyan Blue to be a considerable threat to them, and even then, this wouldn't guarantee her a victory.