Yes, showing all links already open (after toggle) is another popular option.
Right now, our mobile menu is unique, original and experimental to give mobile users even more capability than most in a lightweight way.
Since this appears to be working great for most customers and the most popular devices, at this time, we’re not considering redesigning the mobile menu. We need more user feedback before considering any changes.
I realize this may not be what you want to hear, but we need to spend more time with the new menu and we cannot offer any further assistance on this specific issue at this time (closing topic).