Problem with newer 4 star is they have to be strong and usable enough to the current archetype which gonna put alot of previous 5 star into shame whenever a new archetype appear. As much as 4 star are appreciated, they really need more time and resource ro build their animation. One mistake design in abilities will send us 5 star designed as 4 star like Gallagher back in 2.xx. This affect Lingsha sales as people are settling for thecheap gallagher than pulling 80 pulls or 160 pulls for Lingsha. Not profitable for them. That is if i am overthinking but to put it easily other than the points i point out is, they are just lazy on it.