My biggest issue with the anime is not the outfits, it's the fact that they get powerups and there's no explanation as to how they just magically know the names of the attacks or incantations to make them happen.
She used all of her Eternal Power on Galaxia. She used "Silver Moon Crystal Power" which is Silver Moon Crystal Power Kiss at full strength, and Galaxia momentarily gotten affected by it, but she snapped out of it to destroy her Scepter because had she not do that? *Sailor Moon would've purified her sooner than later.*