This was the main reason I chose the ASK/silicone case combo over the Create. I wanted to easily be able to switch between using the keyboard and not using it.
When I got my IPad Pro, the Smartkeyboard cover was still a 2 month wait (had to wait 2 months for my Apple Pencil as well) and Best Buy had a shipment of the CREATE keyboards available. Given the sheer size of the iPad Pro, I wanted to get it into something protective right away. I've now traded my CREATE keyboard for apple's Smartkeyboard