It's a solution for a made-up problem. Sure, async/await makes it easier. But not as good as the normal sync code would be. And for what reason? The concurrency problems are already a solved issue in many many frameworks. Sure, if you do fully manual threads in something like C++ and code up everything yourself - you're in for the trouble down the road unless you are a good professional. But there are heaps of concurrency frameworks in all major languages that make this very easy. And what about performance, how does JavaScript justify putting virtually every single return value of every function into some Promise object? Talk about wasted resources.