If you use D across your organization, you can use the GC for internal tools and scripts, while keeping high-performance product code GC-free. So it's not really a hindrance, as you don't have to use different languages.
I think D should latch and promote more on the idea of having on-demand performance when it's necessary with GC convenience for the rest of the application. Soon having borrow checker capability ala rust and cyclone will only strengthen the narrative.
