And companions like lae'zel are hardliners which won't use tadpole magic, and only want to hurry up, getting rid of tadpoles, not use their magic at all, and not being aroused by the imagined love interest thing (= game hard mode) while astarion on the other end of the spectrum is more like, let's chill. "Let's wait, see if it's really that bad or maybe useful, and let us use the power", in a " I don't care if the lovemaking is only a dream if it feels good, right?" - kind of way.. Etc.
In my eyes tadpoles and the broad spectrum of interesting characters combining alignment with choices and game difficulty in an immersive way is a genius move!