Took me awhile to get back around to digging it up, but after that PR was merged in it exposed this issue which is still open:
https://github.com/pulumi/pulumi/issues/11726. I haven't taken the time to go back through and open another example issue with it, because all it would be doing it pointing back to the already open issue 😕
Watching that one for when it closes, one of my primary gripes with pulumi right now is that the teams will release something awesome in a blog post and then it becomes basically abandoned without getting past the POC stage into even some sort of expandable MVP.
A la their eks blueprints and ssp
https://www.pulumi.com/blog/eks-blueprints-for-pulumi/