When the tab file is running, the focus point (red line) will move until it is down at the bottom of the screen at which point the fretboard covers it, if you remove the fretboard it's still cut off behind the bar at the bottom of the screen.
Auto hiding that bar would be great but it still leaves you guessing as to what comes next
I think a better option would be to have an auto scroll that keeps the red line halfway down the screen so that you can see what's coming next and don't have to keep using my thumb to scroll it manually.