The current tablet mode, designed for use on keyboardless devices is a bit fiddly, to say the least, and it looks like Redmond is well aware.
The new features aimed at 2-in-1 devices are likely to be enabled by default as soon as you detach the keyboard but give a slightly less ‘alien’ look to the desktop that is offered currently.
Currently, tablet mode hides the desktop completely in favour of the tiled (formerly ‘Metro’) interface.