Yeah, tadpole as it is doesn't integrate with the rest of the game - it's more like a seperate, clearly bad option, that you can pick. Having it tie into core mechanics, be it skill checks or combat would be so much interesting and tempting to use. It would be nice if it would tie into combat (I know you get some tadople skills if you use it, but I only got them once out of curiosity). One could imagine many interesting ways to incorparate tadpole into combat, but considering how hard BG3 works to hide gameplay mechanics I struggle to imagine it being implemented in any other way as it is now.