At first I thought the same, remove the bar. The bar is most likley there because touch input needs improvement and will go when another technique is reliable enough. It’s (currently) a waste of space.
But then I tought, why copy what Apple is doing? Why not use the bar to bring different functionality? Apple has two top menus, L5 could have a bottom and top menu. What new paradigm could Linux users do? We could create a new ‘mobile/desktop environment’.