The decision was made. At this point, though async/await could be held up by someone finding a soundness hole, the syntax has been decided. The chance of the decision being changed is effectively zero.
The systems are the interesting and tricky part. The syntax is just a choice (though it does have impact) that needed to be chosen. It has, let’s respect that choice. The lang team does not have an easy job managing the flood of ideas and feedback they’re provided with.