Only due to Venat being Hydaelyn's heart. Shiva as a primal retained a portion of her physical likeness. Why wouldn't the same go for Venat as Hydaelyn? Nothing in this game is coincidental. SE has always been extremely careful when it comes to details.
Take the Tomorrow and Tomorrow and Tomorrow reference for example. You posted it in regard to Kesey's post.
Authors of our fates
Orchestrate our fall from grace
Poorest players on the stage
Our defiance drives us straight to the edge
A reflection in the glass
Recollections of our past
Swift as darkness, cold as ash
Far beyond this dream of paradise lost
These lyrics, taken from the Shadowbringers theme along with the lyrics to Tomorrow and Tomorrow, are in sync with each another. He's right. Emet had a change of heart the moment he had made the Fourteenth's stone in secret. He wanted a better way forward. He only asked not to forget them and to learn from their mistakes. The "Swift as darkness, cold as ash" is about rash actions and their results.
Rock of ages, we cast the first stone
In our cages, we know not what we do
Indecision here at the crossroads
Recognition, tomorrow's come too soon
Follow blindly like lambs to slaughter
At the mercy of those who ply the sword
As our song wends dead underwater
We're forgotten for now and evermore
See? It all connects to each other. Every detail compliments the other.
Edited, Sorry Iscah. I had yet to finish the post.