Ability to show/hide subitems in sharable view

I’d love the ability to decide if I want my public / shareable view should show or hide subitems.

I’ve run into an issue between subitems and shareable / public views. I can set my board subitems and columns and save to view, but when I go to publish that view, all the subitem columns automatically pull through the shared view, even if I hid them on the board.
I’m told this is not a bug, but clearly the public / shared view html is not doing what the board view is doing, so it has to be a bug - doesn’t it? Please fix, it’s infuriating!