I'm really questioning the balance philosophy on the new duo

So there's who is pretty insane for an ADC. She has everything an ADC wants except mobility. She has high damage, large amounts of AoE with high scaling, one of the best anti dive abilities on an ADC in the game, and a CC that acts as a zoning tool and hurts on top of it. She does have a somewhat weak early game (she is prone to being dove before 6). But she doesn't really have the big of a weakness early on to make up for her amazing spike at 6 and her pretty insane scaling.

Then there's who has stupid high AP ratios on his heal making him no matter what going to be AP (I guess it forces him to be squishy even though he is supposed to go in). And the sad thing is if he isn't on the same team as he is pretty useless. I mean his ult makes for some nice combos and his mobility is nice, but besides his insane healing and ult he is nothing without the interactions.

The interactions should be there. The problem is that they are too strong. Regardless of the fact that one is strong and the other is pretty weak is besides the point. The interactions should be synergistic but not overbearing. The enhanced recall has its ups and downs and I am personally ok with how it works. How much range Rakan gets on his dash needs to be lowered. Being increased is okay, but I feel that it should be like 100-200 units longer not the almost 400 it is right now.

Then there's who gets an extra 20% damage on her W that also applies to Rakan. No just no. You can't add damage to her kit like that. An extra 20% scaling is not okay just because of another pick especially on a nonskill shot ability. Her damage should be something like: If Rakan has recently (like in the last 2-4s) damaged or CC'd an enemy add 20% extra damage on those targets while this is active.

I mean don't get me wrong I don't really see that big of a problem on either of them on their own, except for some glaring cases like the way Rakan is being told to go AP yet he is a support who is supposed to be healing and peeling for the ADC. And the fact that Xayah doesn't really seem to be flawed enough early game to make up for her strong late game (which seems to be the focus of her kit as it pretty much invalidates assassins and has a lot of team fight utility). I will admit that they both seem to burn mana like crazy when played aggressive, which is a good thing, but I feel like it isn't enough to fix their problems.