[legerdemain]

I would guess the doubling is because AWS IAM and Terraform both do interpolation with `${...}`, and this is one way it can look like when Terraform passes un-evaluated template strings to AWS. (I think recent versions of the TF AWS provider use `&{...}` for slightly improved legibility here.)

SREs live in a special kind of hell and are often willing to accept partial solutions that other SWEs would turn their noses at. If most software tools are "80% solutions," Terraform is more like 70%. And yet it is far, far better than what came before. (And to be quite frank, Pulumi is fundamentally the same as TF and suffers from very similar shortcomings, despite its veneer of more flexible programmability.)

That said, pulling up a random PR and making cantankerous and baseless claims about its authors and their employer strikes me as ridiculous.