I like my 2018 MBP. I even like the keyboard. The touch bar is kinda "meh," but I think it's more a software issue than hardware: Apple's interface guidelines

I like my 2018 MBP. I even like the keyboard. The touch bar is kinda "meh," but I think it's more a software issue than hardware: Apple's interface guidelines make no sense to me. Why can't developers use it to give me a little extra display real estate if that's what they AND I (the user!) want? Why must it be treated purely as an input device?