I agree that those were not actually "promises" but "directions", and I apologise for that. Those directions were mainly cited in different conferences by some Rust-head-members at that time (Alex Crichton, Niko Matsakis, Ashley Williams, or even you), and during conversations I had with severals during Rust Fest or RustCon.
For example, I remember talking that with you at the Rust Fest 2017, in Zurich actually, especially about the *very early version* of Async/Await.
It is ok for the community to move on different directions than the first one, and I don't blame any of you for that.
Niko and Alex were the only ones in leadership in 2013, I didn't until 2014, and Ashley later. Rust Fest and Rust Con didn't come along until much later.
> It is ok for the community to move on different directions than the first one
I agree, I just disagree with your characterization of "the first one." There were differences between the original Rust and what shipped, but almost none of it has to do with what you've said. In 2012-2013, Rust very explicitly changed a lot across time, and now it certainly does not. Async/await drove a lot of that adoption. Rust was always "political", even before 2012.