Yea, it would be a ton of work even if they just changed the amount that showed up on the char screen. Even if they just changed that, they would need to change it for every card (I highly doubt they could just put a multiplier for the stats added from cards ebfore being added to the char screen total, and if they could, I could see them doubling all stats, regardless of if they're from cards or not

lol) So, yea, getting them to change the values is worthless. The easiest solutions I saw were: Enabling pet skin changing to a creature you have the card of (no skills/abilities/stats change), and adding titles that give a % boost based on which cards you have to all attributes.