Why D is not popular enough?

[Walter Bright via Digitalmars-d]

On 8/30/2016 12:56 AM, Markus wrote:
> The tour https://tour.dlang.org/ is nearly empty, but on the first page it
> states that D is an "evolution of C++ (without the mistakes)" (the real content
> is hidden in the menu-sections).

I was going to fix that, but can't find where it is on github. The "Open Source" 
links to https://github.com/stonemaster/dlang-tour, but it isn't there.