Is it so wrong if I want to see the mascots in those big suits duke it out?

The pope plays Dark Souls 3?

And here I am still just waiting for King Dedede....

What I don't understand is why they can't design a controller that can mimic the other functions of the Vita. The PS4 controller already has a type of touch pad, why can't that be modified to work like the Vita does? Unless I'm missing something it seems a mod controller would make it identical.