So, I have to ask why whimsical.co's navigation is so counter-intuitive? Why do arrow keys move the screen the opposite direction, and why is there no drag and

So, I have to ask why whimsical.co's navigation is so counter-intuitive? Why do arrow keys move the screen the opposite direction, and why is there no drag and drop? I am not trying to be aggressive, I just want to understand the design decision?