You're free to argue that, but it's still fair for everyone to concede that there's a difference in friction between "I can do what I need, now" and "I have to

You're free to argue that, but it's still fair for everyone to concede that there's a difference in friction between "I can do what I need, now" and "I have to wait for the language core to add features trailing discovering of these niche needs". Also, the subject's been raised before, and regrettably (IMO) the proposal rejected. As a result, you'll find a nontrivial amount of C appearing in e.g. the runc project. (Which is a crying shame, because it invoking cgo means runc ceased to be trivially reproducibly buildable, last time I checked...)