He may be off-topic, im2smart4u, but can you be a bit more diplomatic, please.
Though I do not like the idea myself either.
In any case, Craig specifically developed two new attacks (the elemental shield and the elemental breath 2) for the Red Spriggat to use in TSoG (at least, that was strongly implied back then). Also, given that Frost Spriggat enemy is stronger than a Red Spriggat enemy, it's advantageous to have a Red Spriggat attacking the stronger enemy and dealing more damage to them, and if this is extended to other enemy types,it will give an even further advantage to the player. I also wouldn't mind trying a Red Spriggat for a change, especially since stats don't really matter - though people mentioned it about TPA2, that a Frost Spriggat has higher initial stats, there is nothing stopping the player from accumulating gold and spedning it on a weaker Red Spriggat to make the said Spriggat ultimately stronger.