Why do they keep nerfing Yamato

Yamato has been getting nerf after nerf for absolutely no reason, I understand that lower ranks struggle with her because they don't know about silence items apparently, just like they still call shiv OP bcz they don't know about anti-heal items.

Her ult is useless now, no reason to play the character if the only viable build is veil Yamato (since veil walker has been buffed now).

What even is the point of playing Yamato atp? Why make a character who already struggled late game, just to nerf the ult to the ground and taking away any chance of her getting stronger and forcing the character to be a big forehead, squishy and inferior version of any other hero