(Timestamp is 6:45:08)
Maybe they like it? It's a perfectly reasonable systems language, even if it's not my personal favorite. It might be something questionable if they used Fortran or Algol-68, sure.
Now, I know the answer as a former D acolyte - it's an interesting language with powerful abstractions, albeit hobbled in some ways - but most people don't, so I think it a reasonable question to ask.
The fact that you're unable to distinguish the difference means you're being purposefully obtuse and annoying or are simply naive.
This part is really unnecessary. Parent is most likely not "unable to distinguish" and name calling poisons the air and cheapens your other point which I think is good.
D is very, very fun.