Rakan and Xayah shouldn't be strictly stronger with each other

For the most part, everyone seems to be ok about this issue but to me this is lazy and poor game design. Their kits should be synergistic with each other, not be stronger just because they're in the same game with each other. This goes against so many of Riot's design philosophies, and if they are willing to have poor design like this, then they're willing to continue putting in poor gameplay designs. They removed random dodge for a reason, because it was bad game design. They removed phage slow, because it was problematic gameplay. Now they're introducing what is so obviously bad game design, even though they know it's poor game design and goes against their past actions, which is unfathomable to me.