Alright, being honest unlike you, there's no proof. All we know is that square enix is on sweet baby inc's client list on their own website.
https://sweetbabyinc.com/projects/
Who cares if Sena is associated with sweet baby? Sure even you bringing it to attention means you acknowledge sweey baby is bad and a problem.
But just like her identity, I dont care even though you seem to have an unhealthy and unnatural obsession with it. I care that her performance was bad and whoever directed her did a bad job too, and so did whoever translated and localized the dialogue. It was bad across the board.